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CERTIFICACION

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Electronica CERTIFICACION Quiz on CERTIFICACION, created by llballadaresdeat on 27/11/2014.
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Quiz by llballadaresdeat, updated more than 1 year ago
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Created by llballadaresdeat almost 10 years ago
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Resource summary

Question 1

Question
Which three statements correctly describe Network Device A? (Choose three.)
Image:
Captura1.PNG (image/PNG)
Answer
  • With a network wide mask of 255.255.255.128, each interface does not require an IP address.
  • With a network wide mask of 255.255.255.128, each interface does require an IP address on a unique IP subnet.
  • With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to communicate with each other.
  • With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to communicate with each other.
  • With a network wide mask of 255.255.254.0, each interface does not require an IP address.

Question 2

Question
What will Router1 do when it receives the data frame shown? (Choose three.)
Image:
Captura2.PNG (image/PNG)
Answer
  • Router1 will strip off the source MAC address and replace it with the MAC address 0000.0c36.6965.
  • Router1 will strip off the source IP address and replace it with the IP address 192.168.40.1.
  • Router1 will strip off the destination MAC address and replace it with the MAC address 0000.0c07.4320.
  • Router1 will strip off the destination IP address and replace it with the IP address of 192.168.40.1.
  • Router1 will forward the data packet out interface FastEthernet0/1.
  • Router1 will forward the data packet out interface FastEthernet0/2.

Question 3

Question
Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication?
Answer
  • transport
  • network
  • presentation
  • session
  • application

Question 4

Question
Which of the following describes the roles of devices in a WAN? (Choose three.)
Answer
  • A CSU/DSU terminates a digital local loop.
  • A modem terminates a digital local loop.
  • A CSU/DSU terminates an analog local loop.
  • A modem terminates an analog local loop.
  • A router is commonly considered a DTE device.
  • A router is commonly considered a DCE device.

Question 5

Question
Host A pings interface S0/0 on router 3. What is the TTL value for that ping?
Answer
  • 252
  • 253
  • 254
  • 255

Question 6

Question
A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the network administrator is using for this operation?
Answer
  • application
  • presentation
  • transport
  • session
  • internet
  • data link

Question 7

Question
After HostA pings HostB, which entry will be in the ARP cache of HostA to support this transmission?
Answer

Question 8

Question
A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?
Answer
  • This is a 10 Mb/s switch port.
  • This is a 100 Mb/s switch port.
  • This is an Ethernet port operating at half duplex.
  • This is an Ethernet port operating at full duplex.
  • This is a port on a network interface card in a PC.

Question 9

Question
A receiving host computes the checksum on a frame and determines that the frame is damaged. The frame is then discarded. At which OSI layer did this happen?
Answer
  • session
  • transport
  • network
  • data link
  • physical

Question 10

Question
Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.)
Answer
  • The transport layer divides a data stream into segments and may add reliability and flow control information.
  • The data link layer adds physical source and destination addresses and an FCS to the segment.
  • Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
  • Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
  • The presentation layer translates bits into voltages for transmission across the physical link.

Question 11

Question
Host A is communicating with the server. What will be the source MAC address of the frames received by Host A from the server?
Image:
Captura5.PNG (image/PNG)
Answer
  • the MAC address of router interface e0
  • the MAC address of router interface e1
  • the MAC address of the server network interface
  • the MAC address of host A

Question 12

Question
What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two.)
Image:
Captura6.PNG (image/PNG)
Answer
  • The number of collision domains would remain the same.
  • The number of collision domains would decrease.
  • The number of collision domains would increase.
  • The number of broadcast domains would remain the same.
  • The number of broadcast domains would decrease.
  • The number of broadcast domains would increase.

Question 13

Question
Which three statements accurately describe Layer 2 Ethernet switches? (Choose three.)
Answer
  • Spanning Tree Protocol allows switches to automatically share VLAN information.
  • Establishing VLANs increases the number of broadcast domains.
  • Switches that are configured with VLANs make forwarding decisions based on both Layer 2 and Layer 3 address information.
  • Microsegmentation decreases the number of collisions on the network.
  • In a properly functioning network with redundant switched paths, each switched segment will contain one root bridge with all its ports in the forwarding state. All other switches in that broadcast domain will have only one root port.
  • If a switch receives a frame for an unknown destination, it uses ARP to resolve the address.

Question 14

Question
Where does routing occur within the DoD TCP/IP reference model?
Answer
  • application
  • internet
  • network
  • transport

Question 15

Question
Which destination addresses will be used by Host A to send data to Host C? (Choose two.)
Image:
Captura7.PNG (image/PNG)
Answer
  • the IP address of Switch 1
  • the MAC address of Switch 1
  • the IP address of Host C
  • the MAC address of Host C
  • the IP address of the router's E0 interface
  • the MAC address of the router's E0 interface

Question 16

Question
For what two purposes does the Ethernet protocol use physical addresses? (Choose two.)
Answer
  • to uniquely identify devices at Layer 2
  • to allow communication with devices on a different network
  • to differentiate a Layer 2 frame from a Layer 3 packet
  • to establish a priority system to determine which device gets to transmit first
  • to allow communication between different devices on the same network
  • to allow detection of a remote device when its physical address is unknown

Question 17

Question
Based on the information given, which switch will be elected root bridge and why?
Image:
Captura8.PNG (image/PNG)
Answer
  • Switch A, because it has the lowest MAC address
  • Switch A, because it is the most centrally located switch
  • Switch B, because it has the highest MAC address
  • Switch C, because it is the most centrally located switch
  • Switch C, because it has the lowest priority
  • Switch D, because it has the highest priority

Question 18

Question
Which of the following statements describe the network shown in the graphic? (Choose two.)
Image:
Captura9.PNG (image/PNG)
Answer
  • There are two broadcast domains in the network.
  • There are four broadcast domains in the network.
  • There are six broadcast domains in the network.
  • There are four collision domains in the network.
  • There are five collision domains in the network.
  • There are seven collision domains in the network.

Question 19

Question
In an Ethernet network, under what two scenarios can devices transmit? (Choose two.)
Answer
  • when they receive a special token
  • when there is a carrier
  • when they detect no other devices are sending
  • when the medium is idle
  • when the server grants access

Question 20

Question
A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. How can you accomplish this task, using the fewest physical interfaces and without decreasing network performance?
Answer
  • Use a hub to connect the four VLANS with a Fast Ethernet interface on the router.
  • Add a second router to handle the VLAN traffic.
  • Add two more Fast Ethernet interfaces.
  • Implement a router-on-a-stick configuration.

Question 21

Question
Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true? (Choose two.)
Answer
  • Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.
  • Router C will use ICMP to inform Router B that Host 2 cannot be reached.
  • Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.
  • Router C will send a Destination Unreachable message type.
  • Router C will send a Router Selection message type.
  • Router C will send a Source Quench message type.

Question 22

Question
What is the difference between a CSU/DSU and a modem?
Answer
  • A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.
  • A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.
  • A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.
  • A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.

Question 23

Question
Switch port FastEthernet 0/24 on ALSwitch1 will be used to create an IEEE 802.1Q-compliant trunk to another switch. Based on the output shown, what is the reason the trunk does not form, even though the proper cabling has been attached?
Image:
Captura11.PNG (image/PNG)
Answer
  • VLANs have not been created yet.
  • An IP address must be configured for the port.
  • The port is currently configured for access mode.
  • The correct encapsulation type has not been configured.
  • The "no shutdown" command has not been entered for the port.

Question 24

Question
Which port state is introduced by Rapid-PVST?
Answer
  • learning
  • listening
  • discarding
  • forwarding

Question 25

Question
VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan 3 command in interface configuration mode?
Answer
  • The command is rejected.
  • The port turns amber.
  • The command is accepted and the respective VLAN is added to vlan.dat.
  • The command is accepted and you must configure the VLAN manually.

Question 26

Question
What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?
Answer
  • path cost
  • lowest port MAC address
  • VTP revision number
  • highest port priority number
  • port priority number and MAC address

Question 27

Question
In a switched environment, what does the IEEE 802.1Q standard describe?
Answer
  • the operation of VTP
  • a method of VLAN trunking
  • an approach to wireless LAN communication
  • the process for root bridge selection
  • VLAN pruning

Question 28

Question
Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will Switch-1 do with this data?
Image:
Captura12.PNG (image/PNG)
Answer
  • Switch-1 will drop the data because it does not have an entry for that MAC address.
  • Switch-1 will flood the data out all of its ports except the port from which the data originated.
  • Switch-1 will send an ARP request out all its ports except the port from which the data originated.
  • Switch-1 will forward the data to its default gateway.

Question 29

Question
What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch?
Answer
  • It creates a VLAN 999 interface.
  • It designates VLAN 999 for untagged traffic.
  • It blocks VLAN 999 traffic from passing on the trunk.
  • It designates VLAN 999 as the default for all unknown tagged traffic.

Question 30

Question
Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? (Choose two.)
Answer
  • 802.1d
  • 802.1q
  • VTP
  • SAP
  • STP

Question 31

Question
Which switch would STP choose to become the root bridge in the selection process?
Answer
  • 32768: 11-22-33-44-55-66
  • 32768: 22-33-44-55-66-77
  • 32769: 11-22-33-44-55-65
  • 32769: 22-33-44-55-66-78

Question 32

Question
A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?
Answer
  • More collision domains will be created.
  • IP address utilization will be more efficient.
  • More bandwidth will be required than was needed previously.
  • An additional broadcast domain will be created.

Question 33

Question
What are three benefits of implementing VLANs? (Choose three.)
Answer
  • A higher level of network security can be reached by separating sensitive data traffic from other network traffic.
  • A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure.
  • A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure.
  • Broadcast storms can be mitigated by increasing the number of broadcast domains, thus reducing their size.
  • Broadcast storms can be mitigated by decreasing the number of broadcast domains, thus increasing their size.
  • VLANs make it easier for IT staff to configure new logical groups, because the VLANs all belong to the same broadcast domain.
  • Port-based VLANs increase switch-port use efficiency, thanks to 802.1Q trunks.

Question 34

Question
Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over Fast Ethernet?
Answer
  • 802.3ad
  • 802.1w
  • 802.1D
  • 802.1Q

Question 35

Question
Which of the following are benefits of VLANs? (Choose three.)
Answer
  • They increase the size of collision domains.
  • They allow logical grouping of users by function.
  • They can enhance network security.
  • They increase the size of broadcast domains while decreasing the number of collision domains.
  • They increase the number of broadcast domains while decreasing the size of the broadcast domains.
  • They simplify switch administration.

Question 36

Question
A technician has installed SwitchB and needs to configure it for remote access from the management workstation connected to SwitchA. Which set of commands is required to accomplish this task?
Image:
Captura13.PNG (image/PNG)
Answer
  • SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  • SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# ip default-gateway 192.168.8.254 255.255.255.0 SwitchB(config-if)# no shutdown
  • SwitchB(config)# ip default-gateway 192.168.8.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  • SwitchB(config)# ip default-network 192.168.8.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown
  • SwitchB(config)# ip route 192.168.8.254 255.255.255.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.168.8.252 255.255.255.0 SwitchB(config-if)# no shutdown

Question 37

Question
Which two states are the port states when RSTP has converged? (Choose two.)
Answer
  • discarding
  • listening
  • learning
  • forwarding
  • disabled

Question 38

Question
Which two commands can be used to verify a trunk link configuration status on a given Cisco switch interface? (Choose two.)
Answer
  • show interface trunk
  • show interface interface
  • show ip interface brief
  • show interface vlan
  • show interface switchport

Question 39

Question
Which command enables RSTP on a switch?
Answer
  • spanning-tree uplinkfast
  • spanning-tree mode rapid-pvst
  • spanning-tree backbonefast
  • spanning-tree mode mst

Question 40

Question
All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?
Answer
  • The access link needs to be configured in multiple VLANs.
  • The link between the switches is configured in the wrong VLAN.
  • The link between the switches needs to be configured as a trunk.
  • VTP is not configured to carry VLAN information between the switches.
  • Switch IP addresses must be configured in order for traffic to be forwarded between the switches.

Question 41

Question
Which WAN protocol is being used?
Image:
Captura15.PNG (image/PNG)
Answer
  • ATM
  • HDLC
  • Frame Relay
  • PPP

Question 42

Question
Given the output shown from this Cisco Catalyst 2950, what is the reason that interface FastEthernet 0/10 is not the root port for VLAN 2?
Answer
  • This switch has more than one interface connected to the root network segment in VLAN 2.
  • This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.
  • This switch interface has a higher path cost to the root bridge than another in the topology.
  • This switch has a lower bridge ID for VLAN 2 than the elected designated switch.

Question 43

Question
Why will a switch never learn a broadcast address?
Answer
  • Broadcasts only use network layer addressing.
  • A broadcast frame is never forwarded by a switch.
  • A broadcast address will never be the source address of a frame.
  • Broadcast addresses use an incorrect format for the switching table.
  • Broadcast frames are never sent to switches.

Question 44

Question
Why has this switch not been elected the root bridge for VLAN1?
Image:
Captura17.PNG (image/PNG)
Answer
  • It has more than one interface that is connected to the root network segment.
  • It is running RSTP while the elected root bridge is running 802.1d spanning tree.
  • It has a higher MAC address than the elected root bridge.
  • It has a higher bridge ID than the elected root bridge.

Question 45

Question
Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.)
Answer
  • VTP
  • 802.1q
  • IGP
  • ISL
  • 802.3u

Question 46

Question
Assuming the default switch configuration, which VLAN range can be added, modified, and removed on a Cisco switch?
Answer
  • 1 through 1001
  • 2 through 1001
  • 1 through 1002
  • 2 through 1005

Question 47

Question
Which statement about VLAN operation on Cisco Catalyst switches is true?
Image:
Captura18.PNG (image/PNG)
Answer
  • When a packet is received from an 802.1Q trunk, the VLAN ID can be determined from the source MAC address and the MAC address table.
  • Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.
  • Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN.
  • Ports between switches should be configured in access mode so that VLANs can span across the ports.

Question 48

Question
Which ports will be STP designated ports if all the links are operating at the same bandwidth? (Choose three.)
Image:
Captura19.PNG (image/PNG)
Answer
  • Switch A - Fa0/0
  • Switch A - Fa0/1
  • Switch B - Fa0/0
  • Switch B - Fa0/1
  • Switch C - Fa0/0
  • Switch C - Fa0/1

Question 49

Question
How should the FastEthernet0/1 ports on the 2950 model switches that are shown in the exhibit be configured to allow connectivity between all devices?
Image:
Captura20.PNG (image/PNG)
Answer
  • The ports only need to be connected by a crossover cable.
  • SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk
  • SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1
  • SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk SwitchX(config-if)# switchport trunk vlan 1 SwitchX(config-if)# switchport trunk vlan 10 SwitchX(config-if)# switchport trunk vlan 20

Question 50

Question
A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN 2. What causes this behavior?
Image:
Captura21.PNG (image/PNG)
Answer
  • trunk mode mismatches
  • allowing only VLAN 2 on the destination
  • native VLAN mismatches
  • VLANs that do not correspond to a unique IP subnet

Question 51

Question
Which three statements about RSTP are true? (Choose three.)
Answer
  • RSTP significantly reduces topology reconverging time after a link failure.
  • RSTP expands the STP port roles by adding the alternate and backup roles.
  • RSTP port states are blocking, discarding, learning, or forwarding.
  • RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
  • RSTP also uses the STP proposal-agreement sequence.
  • RSTP uses the same timer-based process as STP on point-to-point links.

Question 52

Question
At which layer of the OSI model is RSTP used to prevent loops?
Answer
  • physical
  • data link
  • network
  • transport

Question 53

Question
What does a Layer 2 switch use to decide where to forward a received frame?
Answer
  • source MAC address
  • source IP address
  • source switch port
  • destination IP address
  • destination port address
  • destination MAC address

Question 54

Question
Which statement is true?
Image:
Captura22.PNG (image/PNG)
Answer
  • The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20.
  • VLAN 20 is running the Per VLAN Spanning Tree Protocol.
  • The MAC address of the root bridge is 0017.596d.1580.
  • SwitchA is not the root bridge, because not all of the interface roles are designated.

Question 55

Question
Which two benefits are provided by creating VLANs? (Choose two.)
Answer
  • dedicated bandwidth
  • added security
  • provides segmentation
  • allows switches to route traffic between subinterfaces
  • contains collisions

Question 56

Question
Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN?
Answer
  • ping address
  • tracert address
  • traceroute address
  • arp address

Question 57

Question
Which option contains both the potential networking problem and the protocol or setting that should be used to prevent the problem?
Image:
Captura23.PNG (image/PNG)
Answer
  • routing loops, hold down timers
  • switching loops, split horizon
  • routing loops, split horizon
  • switching loops, VTP
  • routing loops, STP
  • switching loops, STP

Question 58

Question
Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.)
Image:
Captura24.PNG (image/PNG)
Answer
  • Host E and host F use the same IP gateway address.
  • Router1 and Switch2 should be connected via a crossover cable.
  • Router1 will not play a role in communications between host A and host D.
  • The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.
  • Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.
  • The FastEthernet 0/0 interface on Router1 and the FastEthernet 0/1 interface on Switch2 trunk ports must be configured using the same encapsulation type.

Question 59

Question
Which two of these are characteristics of the 802.1Q protocol? (Choose two.)
Answer
  • It is used exclusively for tagging VLAN frames and does not address network reconvergence following switched network topology changes.
  • It modifies the 802.3 frame header, and thus requires that the FCS be recomputed.
  • It includes an 8-bit field which specifies the priority of a frame.
  • It is a Layer 2 messaging protocol which maintains VLAN configurations across networks.
  • It is a trunking protocol capable of carrying untagged frames.

Question 60

Question
Each of these four switches has been configured with a hostname, as well as being configured to run RSTP. No other configuration changes have been made. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.)
Answer
  • SwitchA, Fa0/2, designated
  • SwitchA, Fa0/1, root
  • SwitchB, Gi0/2, root
  • SwitchB, Gi0/1, designated
  • SwitchC, Fa0/2, root
  • SwitchD, Gi0/2, root

Question 61

Question
The network administrator normally establishes a Telnet session with the switch from host A. However, host A is unavailable. The administrator's attempt to telnet to the switch from host B fails, but pings to the other two hosts are successful. What is the issue?
Image:
Captura26.PNG (image/PNG)
Answer
  • Host B and the switch need to be in the same subnet.
  • The switch interface connected to the router is down.
  • Host B needs to be assigned an IP address in VLAN 1.
  • The switch needs an appropriate default gateway assigned.
  • The switch interfaces need the appropriate IP addresses assigned.

Question 62

Question
Which switch provides the spanning-tree designated port role for the network segment that services the printers?
Image:
Captura27.PNG (image/PNG)
Answer
  • Switch1
  • Switch2
  • Switch3
  • Switch4

Question 63

Question
What is one benefit of PVST+?
Answer
  • PVST+ supports Layer 3 load balancing without loops.
  • PVST+ reduces the CPU cycles for all the switches in the network.
  • PVST+ allows the root switch location to be optimized per VLAN.
  • PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.

Question 64

Question
Which are valid modes for a switch port used as a VLAN trunk? (Choose three.)
Answer
  • transparent
  • auto
  • on
  • desirable
  • blocking
  • forwarding

Question 65

Question
How many broadcast domains are shown in the graphic assuming only the default VLAN is configured on the switches?
Image:
Captura28.PNG (image/PNG)
Answer
  • one
  • two
  • six
  • twelve

Question 66

Question
Which three of these statements regarding 802.1Q trunking are correct? (Choose three.)
Answer
  • 802.1Q native VLAN frames are untagged by default.
  • 802.1Q trunking ports can also be secure ports.
  • 802.1Q trunks can use 10 Mb/s Ethernet interfaces.
  • 802.1Q trunks require full-duplex, point-to-point connectivity.
  • 802.1Q trunks should have native VLANs that are the same at both ends.

Question 67

Question
The output that is shown is generated at a switch. Which three statements are true? (Choose three.)
Image:
Captura1.JPG (image/JPG)
Answer
  • All ports will be in a state of discarding, learning, or forwarding.
  • Thirty VLANs have been configured on this switch.
  • The bridge priority is lower than the default value for spanning tree.
  • All interfaces that are shown are on shared media.
  • All designated ports are in a forwarding state.
  • This switch must be the root bridge for all VLANs on this switch.

Question 68

Question
At the end of an RSTP election process, which access layer switch port will assume the discarding role?
Image:
Captura2.JPG (image/JPG)
Answer
  • Switch3, port fa0/1
  • Switch3, port fa0/12
  • Switch4, port fa0/11
  • Switch4, port fa0/2
  • Switch3, port Gi0/1
  • Switch3, port Gi0/2

Question 69

Question
Which term describes a spanning-tree network that has all switch ports in either the blocking or fowarding state?
Answer
  • converged
  • redundant
  • provisioned
  • spanned

Question 70

Question
What are the possible trunking modes for a switch port? (Choose three.)
Answer
  • transparent
  • auto
  • desirable
  • client
  • forwarding
  • on

Question 71

Question
Which two of these statements regarding RSTP are correct? (Choose two.)
Answer
  • RSTP cannot operate with PVST+.
  • RSTP defines new port roles.
  • RSTP defines no new port states.
  • RSTP is a proprietary implementation of IEEE 802.1D STP.
  • RSTP is compatible with the original IEEE 802.1D STP.

Question 72

Question
Which two statements are true of the interfaces on Switch1? (Choose two.)
Image:
Captura3.JPG (image/JPG)
Answer
  • Multiple devices are connected directly to FastEthernet0/1.
  • A hub is connected directly to FastEthernet0/5.
  • FastEthernet0/1 is connected to a host with multiple network interface cards.
  • FastEthernet0/5 has statically assigned MAC addresses.
  • FastEthernet0/1 is configured as a trunk link.
  • Interface FastEthernet0/2 has been disabled.

Question 73

Question
Three switches are connected to one another via trunk ports. Assuming the default switch configuration, which switch is elected as the root bridge for the spanning-tree instance of VLAN 1?
Answer
  • the switch with the highest MAC address
  • the switch with the lowest MAC address
  • the switch with the highest IP address
  • the switch with the lowest IP address

Question 74

Question
What are three advantages of VLANs? (Choose three.)
Answer
  • VLANs establish broadcast domains in switched networks.
  • VLANs utilize packet filtering to enhance network security.
  • VLANs provide a method of conserving IP addresses in large networks.
  • VLANs provide a low-latency internetworking alternative to routed networks.
  • VLANs allow access to network services based on department, not physical location.
  • VLANs can greatly simplify adding, moving, or changing hosts on the network.

Question 75

Question
Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. An 802.1Q trunk is configured between the two switches. On CAT1, VLAN 10 is chosen as native, but on CAT2 the native VLAN is not specified. What will happen in this scenario?
Answer
  • 802.1Q giants frames could saturate the link.
  • VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames.
  • A native VLAN mismatch error message will appear.
  • VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames.

Question 76

Question
A network technician is asked to design a small network with redundancy. The exhibit represents this design, with all hosts configured in the same VLAN. What conclusions can be made about this design?
Image:
Captura4.JPG (image/JPG)
Answer
  • This design will function as intended.
  • Spanning-tree will need to be used.
  • The router will not accept the addressing scheme.
  • The connection between switches should be a trunk.
  • The router interfaces must be encapsulated with the 802.1Q protocol.

Question 77

Question
A technician is troubleshooting host connectivity issues on the switches. The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12. Hosts in the Admin VLAN are able to communicate. The port-to-VLAN assignments are identical on the two switches. What could be the problem?
Image:
Captura5.JPG (image/JPG)
Answer
  • The Fa0/1 port is not operational on one of the switches.
  • The link connecting the switches has not been configured as a trunk.
  • At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate.
  • Port FastEthernet 0/1 needs to be configured as an access link on both switches.
  • A router is required for hosts on SW11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw12.

Question 78

Question
Given this output for SwitchC, what should the network administrator's next action be?
Image:
Captura6.JPG (image/JPG)
Answer
  • Check the trunk encapsulation mode for SwitchC's fa0/1 port.
  • Check the duplex mode for SwitchC's fa0/1 port.
  • Check the duplex mode for SwitchA's fa0/2 port.
  • Check the trunk encapsulation mode for SwitchA's fa0/2 port.

Question 79

Question
You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?
Answer
  • 192.168.252.0 255.255.255.252
  • 192.168.252.8 255.255.255.248
  • 192.168.252.8 255.255.255.252
  • 192.168.252.16 255.255.255.240
  • 192.168.252.16 255.255.255.252

Question 80

Question
Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network address?
Answer
  • 172.16.16.0
  • 172.16.0.0
  • 172.16.24.0
  • 172.16.28.0

Question 81

Question
Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?
Answer
  • ::1
  • ::
  • 2000::/3
  • 0::/10

Question 82

Question
You are working in a data center environment and are assigned the address range 10.188.31.0/23. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each. Which IP address range meets these requirements?
Answer
  • 10.188.31.0/26
  • 10.188.31.0/25
  • 10.188.31.0/28
  • 10.188.31.0/27
  • 10.188.31.0/29

Question 83

Question
What are three features of the IPv6 protocol?
Answer
  • optional IPsec
  • autoconfiguration
  • no broadcasts
  • complicated header
  • plug-and-play
  • checksums

Question 84

Question
Which command enables IPv6 forwarding on a Cisco router?
Answer
  • ipv6 local
  • ipv6 host
  • ipv6 unicast-routing
  • ipv6 neighbor

Question 85

Question
What is known as "one-to-nearest" addressing in IPv6?
Answer
  • global unicast
  • anycast
  • multicast
  • unspecified address

Question 86

Question
What is the first 24 bits in a MAC address called?
Answer
  • NIC
  • BIA
  • OUI
  • VAI

Question 87

Question
Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses?
Image:
Captura7.JPG (image/JPG)
Answer
  • 255.255.255.0
  • 255.255.254.0
  • 255.255.252.0
  • 255.255.248.0

Question 88

Question
What is the most appropriate summarization for these routes?
Image:
Captura8.JPG (image/JPG)
Answer
  • 10.0.0.0 /21
  • 10.0.0.0 /22
  • 10.0.0.0 /23
  • 10.0.0.0 /24

Question 89

Question
Which two are features of IPv6? (Choose two.)
Answer
  • anycast
  • broadcast
  • multicast
  • podcast
  • allcast

Question 90

Question
Which two of these statements are true of IPv6 address representation? (Choose two.)
Answer
  • There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.
  • A single interface may be assigned multiple IPv6 addresses of any type.
  • Every IPv6 interface contains at least one loopback address.
  • The first 64 bits represent the dynamically created interface ID.
  • Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.

Question 91

Question
A new subnet with 60 hosts has been added to the network. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses?
Image:
Captura9.JPG (image/JPG)
Answer
  • 192.168.1.56/26
  • 192.168.1.56/27
  • 192.168.1.64/26
  • 192.168.1.64/27

Question 92

Question
All of the routers in the network are configured with the ip subnet-zero command. Which network addresses should be used for Link A and Network A? (Choose two.)
Image:
Captura10.JPG (image/JPG)
Answer
  • Network A - 172.16.3.48/26
  • Network A - 172.16.3.128/25
  • Network A - 172.16.3.192/26
  • Link A - 172.16.3.0/30
  • Link A - 172.16.3.40/30
  • Link A - 172.16.3.112/30

Question 93

Question
The network administrator needs to address seven LANs. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block?
Answer
  • 8
  • 6
  • 30
  • 32
  • 14
  • 16

Question 94

Question
What will happen if a private IP address is assigned to a public interface connected to an ISP?
Answer
  • Addresses in a private range will be not be routed on the Internet backbone.
  • Only the ISP router will have the capability to access the public network.
  • The NAT process will be used to translate this address to a valid IP address.
  • A conflict of IP addresses happens, because other public routers can use the same range.

Question 95

Question
Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two.)
Answer
  • reduces routing table entries
  • auto-negotiation of media rates
  • efficient utilization of MAC addresses
  • dedicated communications between devices
  • ease of management and troubleshooting

Question 96

Question
What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?
Answer
  • B514 : 82C3 : 0029 : EC7A : EC72
  • B514 : 82C3 :: 0029 : EC7A : EC72
  • B514 : 82C3 : 0029 :: EC7A : 0000 : EC72
  • B514 : 82C3 :: 0029 : EC7A : 0 : EC72

Question 97

Question
All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? (Choose three.)
Answer
  • The subnet mask in use is 255.255.255.192.
  • The subnet mask in use is 255.255.255.128.
  • The IP address 172.16.1.25 can be assigned to hosts in VLAN1
  • The IP address 172.16.1.205 can be assigned to hosts in VLAN1
  • The LAN interface of the router is configured with one IP address.
  • The LAN interface of the router is configured with multiple IP addresses.

Question 98

Question
Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.)
Answer
  • Global addresses start with 2000::/3.
  • Link-local addresses start with FE00:/12.
  • Link-local addresses start with FF00::/10.
  • There is only one loopback address and it is ::1.
  • If a global address is assigned to an interface, then that is the only allowable address for the interface.

Question 99

Question
The network administrator has been asked to give reasons for moving from IPv4 to IPv6. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.)
Answer
  • no broadcast
  • change of source address in the IPv6 header
  • change of destination address in the IPv6 header
  • Telnet access does not require a password
  • autoconfiguration
  • NAT

Question 100

Question
An administrator must assign static IP addresses to the servers in a network. For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP properties box for the sales server?
Answer
  • IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.9
  • IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.20.1
  • IP address: 192.168.20.30 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.25
  • IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.17
  • IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.25

Question 101

Question
Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs, with each LAN containing 5 to 26 hosts?
Answer
  • 0.0.0.240
  • 255.255.255.252
  • 255.255.255.0
  • 255.255.255.224
  • 255.255.255.240

Question 102

Question
How many bits are contained in each field of an IPv6 address?
Answer
  • 24
  • 4
  • 8
  • 16

Question 103

Question
What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme. (Choose three.)
Answer
  • enable dual-stack routing
  • configure IPv6 directly
  • configure IPv4 tunnels between IPv6 islands
  • use proxying and translation to translate IPv6 packets into IPv4 packets
  • statically map IPv4 addresses to IPv6 addresses
  • use DHCPv6 to map IPv4 addresses to IPv6 addresses

Question 104

Question
In this VLSM addressing scheme, what summary address would be sent from router A?
Image:
Captura12.JPG (image/JPG)
Answer
  • 172.16.0.0 /16
  • 172.16.0.0 /20
  • 172.16.0.0 /24
  • 172.32.0.0 /16
  • 172.32.0.0 /17
  • 172.64.0.0 /16

Question 105

Question
How is an EUI-64 format interface ID created from a 48-bit MAC address?
Answer
  • by appending 0xFF to the MAC address
  • by prefixing the MAC address with 0xFFEE
  • by prefixing the MAC address with 0xFF and appending 0xFF to it
  • by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
  • by prefixing the MAC address with 0xF and inserting 0xF after each of its first three bytes

Question 106

Question
What is the most efficient summarization that R1 can use to advertise its networks to R2?
Answer
  • 172.1.0.0/22
  • 172.1.0.0/21
  • 172.1.4.0/22
  • 172.1.4.0/24 172.1.5.0/24 172.1.6.0/24 172.1.7.0/24
  • 172.1.4.0/25 172.1.4.128/25 172.1.5.0/24 172.1.6.0/24 172.1.7.0/24

Question 107

Question
Which option is a valid IPv6 address?
Answer
  • 2001:0000:130F::099a::12a
  • 2002:7654:A1AD:61:81AF:CCC1
  • FEC0:ABCD:WXYZ:0067::2A4
  • 2004:1:25A4:886F::1

Question 108

Question
Which three are characteristics of an IPv6 anycast address? (Choose three.)
Answer
  • one-to-many communication model
  • one-to-nearest communication model
  • any-to-many communication model
  • a unique IPv6 address for each device in the group
  • the same address for multiple devices in the group
  • delivery of packets to the group interface that is closest to the sending device

Question 109

Question
A national retail chain needs to design an IP addressing scheme to support a nationwide network. The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet. Working with only one Class B address, which of the following subnet masks will support an appropriate addressing scheme? (Choose two.)
Answer
  • 255.255.255.0
  • 255.255.255.128
  • 255.255.252.0
  • 255.255.255.224
  • 255.255.255.192
  • 255.255.248.0

Question 110

Question
A network administrator is adding two new hosts to SwitchA. Which three values could be used for the configuration of these hosts? (Choose three.)
Image:
Captura15.JPG (image/JPG)
Answer
  • host A IP address: 192.168.1.79
  • host A IP address: 192.168.1.64
  • host A default gateway: 192.168.1.78
  • host B IP address: 192.168.1.128
  • host B default gateway: 192.168.1.129
  • host B IP address: 192.168.1.190

Question 111

Question
Which IPv6 address is the all-router multicast group?
Answer
  • FF02::1
  • FF02::2
  • FF02::3
  • FF02::4

Question 112

Question
Which address range efficiently summarizes the routing table of the addresses for router Main?
Image:
Captura14.JPG (image/JPG)
Answer
  • 172.16.0.0./21
  • 172.16.0.0./20
  • 172.16.0.0./16
  • 172.16.0.0/18

Question 113

Question
Which IPv6 address is valid?
Answer
  • 2001:0db8:0000:130F:0000:0000:08GC:140B
  • 2001:0db8:0:130H::87C:140B
  • 2031::130F::9C0:876A:130B
  • 2031:0:130F::9C0:876A:130B

Question 114

Question
Which command can you use to manually assign a static IPv6 address to a router interface?
Answer
  • ipv6 autoconfig 2001:db8:2222:7272::72/64
  • ipv6 address 2001:db8:2222:7272::72/64
  • ipv6 address PREFIX_1 ::1/64
  • ipv6 autoconfig

Question 115

Question
Which of these represents an IPv6 link-local address?
Answer
  • FE80::380e:611a:e14f:3d69
  • FE81::280f:512b:e14f:3d69
  • FEFE:0345:5f1b::e14d:3d69
  • FE08::280e:611:a:f14f:3d69

Question 116

Question
The network administrator is asked to configure 113 point-to-point links. Which IP addressing scheme defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?
Answer
  • 10.10.0.0/16 subnetted with mask 255.255.255.252
  • 10.10.0.0/18 subnetted with mask 255.255.255.252
  • 10.10.1.0/24 subnetted with mask 255.255.255.252
  • 10.10.0.0/23 subnetted with mask 255.255.255.252
  • 10.10.1.0/25 subnetted with mask 255.255.255.252

Question 117

Question
Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
Answer
  • Bandwidth
  • Bandwidth and Delay
  • Bandwidth, Delay, and MTU
  • Bandwidth, MTU, Reliability, Delay, and Load

Question 118

Question
Why do large OSPF networks use a hierarchical design? (Choose three.)
Answer
  • to decrease latency by increasing bandwidth
  • to reduce routing overhead
  • to speed up convergence
  • to confine network instability to single areas of the network
  • to reduce the complexity of router configuration
  • to lower costs by replacing routers with distribution layer switches

Question 119

Question
Which command encrypts all plaintext passwords?
Answer
  • Router# service password-encryption
  • Router(config)# password-encryption
  • Router(config)# service password-encryption
  • Router# password-encryption

Question 120

Question
Which two are advantages of static routing when compared to dynamic routing? (Choose two.)
Answer
  • Configuration complexity decreases as network size increases.
  • Security increases because only the network administrator may change the routing table.
  • Route summarization is computed automatically by the router.
  • Routing tables adapt automatically to topology changes.
  • An efficient algorithm is used to build routing tables, using automatic updates.
  • Routing updates are automatically sent to neighbors.
  • Routing traffic load is reduced when used in stub network links.

Question 121

Question
A network administrator needs to allow only one Telnet connection to a router. For anyone viewing the configuration and issuing the show run command, the password for Telnet access should be encrypted. Which set of commands will accomplish this task
Answer
  • service password-encryption access-list 1 permit 192.168.1.0 0.0.0.255 line vty 0 4 login password cisco access-class 1
  • enable password secret line vty 0 login password cisco C. service password
  • service password-encryption line vty 1 login password cisco
  • service password-encryption line vty 0 4 login password cisco

Question 122

Question
The speed of all serial links is E1 and the speed of all Ethernet links is 100 Mb/s. A static route will be established on the Manchester router to direct traffic toward the Internet over the most direct path available. What configuration on the Manchester router will establish a route toward the Internet for traffic that originates from workstations on the Manchester LAN?
Answer
  • ip route 0.0.0.0 255.255.255.0 172.16.100.2
  • ip route 0.0.0.0 0.0.0.0 128.107.1.1
  • ip route 0.0.0.0 255.255.255.252 128.107.1.1
  • ip route 0.0.0.0 0.0.0.0 172.16.100.1
  • ip route 0.0.0.0 0.0.0.0 172.16.100.2
  • ip route 0.0.0.0 255.255.255.255 172.16.100.2

Question 123

Question
The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations. What is the simplest way to accomplish this?
Answer
  • Configure a dynamic routing protocol on London to advertise all routes to Manchester.
  • Configure a dynamic routing protocol on London to advertise summarized routes to Manchester.
  • Configure a dynamic routing protocol on Manchester to advertise a default route to the London router.
  • Configure a static default route on London with a next hop of 10.1.1.1.
  • Configure a static route on London to direct all traffic destined for 172.16.0.0/22 to 10.1.1.2.
  • Configure Manchester to advertise a static default route to London.

Question 124

Question
The network administrator requires easy configuration options and minimal routing protocol traffic. What two options provide adequate routing table information for traffic that passes between the two routers and satisfy the requests of the network administrator? (Choose two)
Answer
  • a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter.
  • a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter.
  • a static route on InternetRouter to direct traffic that is destined for 172.16.0.0/16 to CentralRouter.
  • a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter.
  • a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter.
  • a static, default route on CentralRouter that directs traffic to InternetRouter.

Question 125

Question
What is the effect of using the service password-encryption command?
Answer
  • Only the enable password will be encrypted.
  • Only the enable secret password will be encrypted.
  • Only passwords configured after the command has been entered will be encrypted.
  • It will encrypt the secret password and remove the enable secret password from the configuration.
  • It will encrypt all current and future passwords.

Question 126

Question
What is the effect of the configuration that is shown?
Image:
Captura19.JPG (image/JPG)
Answer
  • It configures SSH globally for all logins.
  • It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet.
  • It configures the virtual terminal lines with the password 030752180500.
  • It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports.
  • It allows seven failed login attempts before the VTY lines are temporarily shutdown.

Question 127

Question
What is the reason that the interface status is "administratively down, line protocol down"?
Image:
Captura20.JPG (image/JPG)
Answer
  • There is no encapsulation type configured.
  • There is a mismatch in encapsulation types.
  • The interface is not receiving any keepalives.
  • The interface has been configured with the shutdown command.
  • The interface needs to be configured as a DTE device.
  • The wrong type of cable is connected to the interface.

Question 128

Question
When running OSPF, what would cause router A not to form an adjacency with router B?
Image:
Captura21.JPG (image/JPG)
Answer
  • The loopback addresses are on different subnets.
  • The values of the dead timers on the routers are different.
  • Route summarization is enabled on both routers.
  • The process identifier on router A is different than the process identifier on router B.

Question 129

Question
A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?
Answer
  • the OSPF route
  • the EIGRP route
  • the RIPv2 route
  • all three routes
  • the OSPF and RIPv2 routes

Question 130

Question
The company uses EIGRP as the routing protocol. What path will packets take from a host on the 192.168.10.192/26 network to a host on the LAN attached to router R1?
Image:
Captura22.JPG (image/JPG)
Answer
  • The path of the packets will be R3 to R2 to R1.
  • The path of the packets will be R3 to R1 to R2.
  • The path of the packets will be both R3 to R2 to R1 AND R3 to R1.
  • The path of the packets will be R3 to R1.

Question 131

Question
A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency. The retransmit interval and the queue counts for the adjacent routers also need to be checked. What command will display the required information?
Answer
  • Router# show ip eigrp adjacency
  • Router# show ip eigrp topology
  • Router# show ip eigrp interfaces
  • Router# show ip eigrp neighbors

Question 132

Question
R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two.)
Image:
Captura23.JPG (image/JPG)
Answer
  • All of the routers need to be configured for backbone Area 1.
  • R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.
  • A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.
  • The hello and dead interval timers are not set to the same values on R1 and R3.
  • EIGRP is also configured on these routers with a lower administrative distance.
  • R1 and R3 are configured in different areas.

Question 133

Question
What is a global command?
Answer
  • a command that is set once and affects the entire router
  • a command that is implemented in all foreign and domestic IOS versions
  • a command that is universal in application and supports all protocols
  • a command that is available in every release of IOS, regardless of the version or deployment status
  • a command that can be entered in any configuration mode

Question 134

Question
When running EIGRP, what is required for RouterA to exchange routing updates with RouterC?
Image:
Captura24.JPG (image/JPG)
Answer
  • AS numbers must be changed to match on all the routers
  • Loopback interfaces must be configured so a DR is elected
  • The no auto-summary command is needed on Router A and Router C
  • Router B needs to have two network statements, one for each connected network

Question 135

Question
A Cisco router is booting and has just completed the POST process. It is now ready to find and load an IOS image. What function does the router perform next?
Answer
  • It checks the configuration register.
  • It attempts to boot from a TFTP server.
  • It loads the first image file in flash memory.
  • It inspects the configuration file in NVRAM for boot instructions.

Question 136

Question
What is the meaning of the output MTU 1500 bytes?
Image:
Captura25.JPG (image/JPG)
Answer
  • The maximum number of bytes that can traverse this interface per second is 1500.
  • The minimum segment size that can traverse this interface is 1500 bytes.
  • The maximum segment size that can traverse this interface is 1500 bytes.
  • The minimum packet size that can traverse this interface is 1500 bytes.
  • The maximum packet size that can traverse this interface is 1500 bytes.
  • The maximum frame size that can traverse this interface is 1500 bytes.

Question 137

Question
On a corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?
Answer
  • a router with subinterfaces configured on the physical interface that is connected to the switch
  • a router with an IP address on the physical interface connected to the switch
  • a switch with an access link that is configured between the switches
  • a switch with a trunk link that is configured between the switches

Question 138

Question
Which command displays CPU utilization?
Answer
  • show protocols
  • show process
  • show system
  • show version

Question 139

Question
What two things will a router do when running a distance vector routing protocol? (Choose two.)
Answer
  • Send periodic updates regardless of topology changes.
  • Send entire routing table to all routers in the routing domain.
  • Use the shortest-path algorithm to the determine best path.
  • Update the routing table based on updates from their neighbors.
  • Maintain the topology of the entire network in its database.

Question 140

Question
Which command is used to display the collection of OSPF link states?
Answer
  • show ip ospf link-state
  • show ip ospf lsa database
  • show ip ospf neighbors
  • show ip ospf database

Question 141

Question
The technician wants to upload a new IOS in the router while keeping the existing IOS. What is the maximum size of an IOS file that could be loaded if the original IOS is also kept in flash?
Answer
  • 3 MB
  • 4 MB
  • 5 MB
  • 7 MB
  • 8 MB

Question 142

Question
The two exhibited devices are the only Cisco devices on the network. The serial network between the two devices has a mask of 255.255.255.252. Given the output that is shown, what three statements are true of these devices? (Choose three.)
Image:
Captura29.JPG (image/JPG)
Answer
  • The Manchester serial address is 10.1.1.1.
  • The Manchester serial address is 10.1.1.2.
  • The London router is a Cisco 2610.
  • The Manchester router is a Cisco 2610.
  • The CDP information was received on port Serial0/0 of the Manchester router.
  • The CDP information was sent by port Serial0/0 of the London router.

Question 143

Question
If IP routing is enabled, which two commands set the gateway of last resort to the default gateway? (Choose two.)
Answer
  • ip default-gateway 0.0.0.0
  • ip route 172.16.2.1 0.0.0.0 0.0.0.0
  • ip default-network 0.0.0.0
  • ip default-route 0.0.0.0 0.0.0.0 172.16.2.1
  • ip route 0.0.0.0 0.0.0.0 172.16.2.1

Question 144

Question
Which parameter would you tune to affect the selection of a static route as a backup, when a dynamic protocol is also being used?
Answer
  • hop count
  • administrative distance
  • link bandwidth
  • link delay
  • link cost

Question 145

Question
Refer to the exhibit. A network associate has configured OSPF with the command: City(config-router)# network 192.168.12.64 0.0.0.63 area 0 After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? (Choose three.)
Image:
Captura29.PNG (image/PNG)
Answer
  • FastEthernet0 /0
  • FastEthernet0 /1
  • Serial0/0
  • Serial0/1.102
  • Serial0/1.103
  • Serial0/1.104

Question 146

Question
The Lakeside Company has the internetwork in the exhibit. The administrator would like to reduce the size of the routing table on the Central router. Which partial routing table entry in the Central router represents a route summary that represents the LANs in Phoenix but no additional subnets?
Image:
Captura30.PNG (image/PNG)
Answer
  • 10.0.0.0/22 is subnetted, 1 subnets D 10.0.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  • 10.0.0.0/28 is subnetted, 1 subnets D 10.2.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  • 10.0.0.0/30 is subnetted, 1 subnets D 10.2.2.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  • 10.0.0.0/22 is subnetted, 1 subnets D 10.4.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  • 10.0.0.0/28 is subnetted, 1 subnets D 10.4.4.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
  • 10.0.0.0/30 is subnetted, 1 subnets D 10.4.4.4 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

Question 147

Question
A static route to the 10.5.6.0/24 network is to be configured on the HFD router. Which commands will accomplish this? (Choose two.)
Image:
Captura31.PNG (image/PNG)
Answer
  • HFD(config)# ip route 10.5.6.0 0.0.0.255 fa0/0
  • HFD(config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6
  • HFD(config)# ip route 10.5.6.0 255.255.255.0 fa0/0
  • HFD(config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6
  • HFD(config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0
  • HFD(config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0

Question 148

Question
Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? (Choose two.)
Answer
  • the amount of available ROM
  • the amount of available flash and RAM memory
  • the version of the bootstrap software present on the router
  • show version
  • show processes
  • show running-config

Question 149

Question
Which command reveals the last method used to powercycle a router?
Answer
  • show reload
  • show boot
  • show running-config
  • show version

Question 150

Question
Which command would you use on a Cisco router to verify the Layer 3 path to a host?
Answer
  • tracert address
  • traceroute address
  • telnet address
  • ssh address

Question 151

Question
What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two.)
Answer
  • hello packets
  • SAP messages sent by other routers
  • LSAs from other routers
  • beacons received on point-to-point links
  • routing tables received from other link-state routers
  • TTL packets from designated routers

Question 152

Question
Which statements describe the routing protocol OSPF? (Choose three.)
Answer
  • It supports VLSM.
  • It is used to route between autonomous systems.
  • It confines network instability to one area of the network.
  • It increases routing overhead on the network.
  • It allows extensive control of routing updates.
  • It is simpler to configure than RIP v2.

Question 153

Question
A network administrator configures a new router and enters the copy startup-config running-config command on the router. The network administrator powers down the router and sets it up at a remote location. When the router starts, it enters the system configuration dialog as shown. What is the cause of the problem?
Answer
  • The network administrator failed to save the configuration.
  • The configuration register is set to 0x2100.
  • The boot system flash command is missing from the configuration.
  • The configuration register is set to 0x2102.
  • The router is configured with the boot system startup command.

Question 154

Question
What is the default administrative distance of OSPF?
Answer
  • 90
  • 100
  • 110
  • 120

Question 155

Question
Which characteristics are representative of a link-state routing protocol? (Choose three.)
Answer
  • provides common view of entire topology
  • exchanges routing tables with neighbors
  • calculates shortest path
  • utilizes event-triggered updates
  • utilizes frequent periodic updates

Question 156

Question
Based on the exhibited routing table, how will packets from a host within the 192.168.10.192/26 LAN be forwarded to 192.168.10.1?
Image:
Captura33.PNG (image/PNG)
Answer
  • The router will forward packets from R3 to R2 to R1.
  • The router will forward packets from R3 to R1 to R2.
  • The router will forward packets from R3 to R2 to R1 AND from R3 to R1.
  • The router will forward packets from R3 to R1

Question 157

Question
C-router is to be used as a "router-on-a-stick" to route between the VLANs. All the interfaces have been properly configured and IP routing is operational. The hosts in the VLANs have been configured with the appropriate default gateway. What is true about this configuration?
Image:
Captura34.PNG (image/PNG)
Answer
  • These commands need to be added to the configuration: C-router(config)# router eigrp 123 C-router(config-router)# network 172.19.0.0
  • These commands need to be added to the configuration: C-router(config)# router ospf 1 C-router(config-router)# network 172.19.0.0 0.0.3.255 area 0
  • These commands need to be added to the configuration: C-router(config)# router rip C-router(config-router)# network 172.19.0.0
  • No further routing configuration is required.

Question 158

Question
Why is flash memory erased prior to upgrading the IOS image from the TFTP server?
Answer
  • The router cannot verify that the Cisco IOS image currently in flash is valid.
  • Flash memory on Cisco routers can contain only a single IOS image.
  • Erasing current flash content is requested during the copy dialog.
  • In order for the router to use the new image as the default, it must be the only IOS image in flash.

Question 159

Question
Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices?
Answer
  • enable cdp
  • cdp enable
  • cdp run
  • run cdp

Question 160

Question
According to the routing table, where will the router send a packet destined for 10.1.5.65?
Image:
Captura36.PNG (image/PNG)
Answer
  • 10.1.1.2
  • 10.1.2.2
  • 10.1.3.3
  • 10.1.4.4

Question 161

Question
Which address and mask combination represents a summary of the routes learned by EIGRP?
Image:
Captura37.PNG (image/PNG)
Answer
  • 192.168.25.0 255.255.255.240
  • 192.168.25.0 255.255.255.252
  • 192.168.25.16 255.255.255.240
  • 192.168.25.16 255.255.255.252
  • 192.168.25.28 255.255.255.240
  • 192.168.25.28 255.255.255.252

Question 162

Question
Assuming that the entire network topology is shown, what is the operational status of the interfaces of R2 as indicated by the command output shown?
Image:
Captura38.PNG (image/PNG)
Answer
  • One interface has a problem.
  • Two interfaces have problems.
  • The interfaces are functioning correctly.
  • The operational status of the interfaces cannot be determined from the output shown.

Question 163

Question
Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two.)
Answer
  • RAM
  • NVRAM
  • flash memory
  • HTTP server
  • TFTP server
  • Telnet server

Question 164

Question
Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?
Image:
Captura39.PNG (image/PNG)
Answer
  • 10.1.1.2
  • 10.154.154.1
  • 172.16.5.1
  • 192.168.5.3

Question 165

Question
What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two.)
Answer
  • Router(config)# interface fastethernet 0/0 Router(config-if)# ip address 192.168.1.1 255.255.255.0 Router(config-if)# no shut down
  • Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address 192.168.10.1 255.255.255.0 Router(config)# interface fastethernet 0/0.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address 192.168.20.1 255.255.255.0
  • Router(config)# router eigrp 100 Router(config-router)# network 192.168.10.0 Router(config-router)# network 192.168.20.0
  • Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server
  • Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk
  • Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway 192.168.1.1

Question 166

Question
Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two.) Router(config)# router ospf 1
Answer
  • All OSPF routers in an area must have the same process ID.
  • Only one process number can be used on the same router.
  • Different process identifiers can be used to run multiple OSPF processes
  • The process number can be any number from 1 to 65,535.
  • Hello packets are sent to each neighbor to determine the processor identifier.

Question 167

Question
For what two reasons has the router loaded its IOS image from the location that is shown? (Choose two.)
Image:
Captura41.PNG (image/PNG)
Answer
  • Router1 has specific boot system commands that instruct it to load IOS from a TFTP server.
  • Router1 is acting as a TFTP server for other routers.
  • Router1 cannot locate a valid IOS image in flash memory.
  • Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server.
  • Cisco routers will first attempt to load an image from TFTP for management purposes.

Question 168

Question
What can be determined about the router from the console output?
Image:
Captura42.PNG (image/PNG)
Answer
  • No configuration file was found in NVRAM.
  • No configuration file was found in flash.
  • No configuration file was found in the PCMCIA card.
  • Configuration file is normal and will load in 15 seconds.

Question 169

Question
Which three elements must be used when you configure a router interface for VLAN trunking? (Choose three.)
Answer
  • one physical interface for each subinterface
  • one IP network or subnetwork for each subinterface
  • a management domain for each subinterface
  • subinterface encapsulation identifiers that match VLAN tags
  • one subinterface per VLAN
  • subinterface numbering that matches VLAN tags

Question 170

Question
Which commands are required to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0? (Choose two.)
Answer
  • Router(config)# router ospf 0
  • Router(config)# router ospf 1
  • Router(config)# router ospf area 0
  • Router(config-router)# network 192.168.16.0 0.0.0.255 0
  • Router(config-router)# network 192.168.16.0 0.0.0.255 area 0
  • Router(config-router)# network 192.168.16.0 255.255.255.0 area 0

Question 171

Question
A router receives information about network 192.168.10.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network?
Answer
  • a directly connected interface with an address of 192.168.10.254/24
  • a static route to network 192.168.10.0/24
  • a RIP update for network 192.168.10.0/24
  • an OSPF update for network 192.168.0.0/16
  • a default route with a next hop address of 192.168.10.1
  • a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop

Question 172

Question
What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?
Answer
  • 2
  • 8
  • 16
  • unlimited

Question 173

Question
Which command shows your active Telnet connections?
Answer
  • show cdp neigbors
  • show session
  • show users
  • show vty logins

Question 174

Question
Which type of EIGRP route entry describes a feasible successor?
Answer
  • a backup route, stored in the routing table
  • a primary route, stored in the routing table
  • a backup route, stored in the topology table
  • a primary route, stored in the topology table

Question 175

Question
The network administrator cannot connect to Switch1 over a Telnet session, although the hosts attached to Switch1 can ping the interface Fa0/0 of the router. Given the information in the graphic and assuming that the router and Switch2 are configured properly, which of the following commands should be issued on Switch1 to correct this problem?
Answer
  • Switch1(config)# line con0 Switch1(config-line)# password cisco Switch1(config-line)#login
  • Switch1(config)# interface fa0/1 Switch1(config-if)# ip address 192.168.24.3 255.255.255.0
  • Switch1(config)# ip default-gateway 192.168.24.1
  • Switch1(config)# interface fa0/1 Switch1(config-if)# duplex full Switch1(config-if)# speed 100
  • Switch1(config)# interface fa0/1 Switch1(config-if)# switchport mode trunk

Question 176

Question
Which of these statements correctly describes the state of the switch once the boot process has been completed?
Image:
Captura43.PNG (image/PNG)
Answer
  • As FastEthernet0/12 will be the last to come up, it will be blocked by STP.
  • Remote access management of this switch will not be possible without configuration change.
  • More VLANs will need to be created for this switch.
  • The switch will need a different IOS code in order to support VLANs and STP.

Question 177

Question
Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated, but they are unable to communicate. The Atlanta router is known to have the correct configuration. Given the partial configurations, identify the fault on the Brevard router that is causing the lack of connectivity.
Image:
Captura44.PNG (image/PNG)
Answer
  • incompatible IP address
  • insufficient bandwidth
  • incorrect subnet mask
  • incompatible encapsulation
  • link reliability too low
  • IPCP closed

Question 178

Question
Users on the 172.17.22.0 network cannot reach the server located on the 172.31.5.0 network. The network administrator connected to router Coffee via the console port, issued the show ip route command, and was able to ping the server. Based on the output of the show ip route command and the topology shown in the graphic, what is the cause of the failure?
Image:
Captura45.PNG (image/PNG)
Answer
  • The network has not fully converged.
  • IP routing is not enabled.
  • A static route is configured incorrectly.
  • The FastEthernet interface on Coffee is disabled.
  • The neighbor relationship table is not correctly updated.
  • The routing table on Coffee has not updated

Question 179

Question
A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10.0.0.0 255.0.0.0 area 0
Answer
  • The process id is configured improperly.
  • The OSPF area is configured improperly.
  • The network wildcard mask is configured improperly.
  • The network number is configured improperly.
  • The AS is configured improperly.
  • The network subnet mask is configured improperly.

Question 180

Question
Which statement is correct regarding the operation of DHCP?
Answer
  • A DHCP client uses a ping to detect address conflicts.
  • A DHCP server uses a gratuitous ARP to detect DHCP clients.
  • A DHCP client uses a gratuitous ARP to detect a DHCP server.
  • If an address conflict is de0tected, the address is removed from the pool and an administrator must resolve the conflict.
  • If an address conflict is detected, the address is removed from the pool for an amount of time configurable by the administrator.
  • If an address conflict is detected, the address is removed from the pool and will not be reused until the server is rebooted.

Question 181

Question
What statement is true of the configuration for this network?
Image:
Captura46.PNG (image/PNG)
Answer
  • The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported.
  • Because of the addressing on interface FastEthernet0/1, the Serial0/0 interface address will not support the NAT configuration as shown.
  • The number 1 referred to in the ip nat inside source command references access-list number 1.
  • ExternalRouter must be configured with static routes to networks 172.16.1.0/24 and 172.16.2.0/24.

Question 182

Question
Which statement describes the process of dynamically assigning IP addresses by the DHCP server?
Answer
  • Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
  • Addresses are permanently assigned so that the hosts uses the same address at all times.
  • Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.
  • Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.

Question 183

Question
What are two benefits of using NAT? (Choose two.)
Answer
  • NAT facilitates end-to-end communication when IPsec is enabled.
  • NAT eliminates the need to re-address all hosts that require external access.
  • NAT conserves addresses through host MAC-level multiplexing.
  • Dynamic NAT facilitates connections from the outside of the network.
  • NAT accelerates the routing process because no modifications are made on the packets.
  • NAT protects network security because private networks are not advertised.

Question 184

Question
On which options are standard access lists based?
Answer
  • destination address and wildcard mask
  • destination address and subnet mask
  • source address and subnet mask
  • source address and wildcard mask

Question 185

Question
A network engineer wants to allow a temporary entry for a remote user with a specific username and password so that the user can access the entire network over the Internet. Which ACL can be used?
Answer
  • standard
  • extended
  • dynamic
  • reflexive

Question 186

Question
How does a DHCP server dynamically assign IP addresses to hosts?
Answer
  • Addresses are permanently assigned so that the host uses the same address at all times.
  • Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.
  • Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.
  • Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.

Question 187

Question
Which rule does the DHCP server use when there is an IP address conflict?
Image:
Captura47.PNG (image/PNG)
Answer
  • The address is removed from the pool until the conflict is resolved.
  • The address remains in the pool until the conflict is resolved.
  • Only the IP detected by Gratuitous ARP is removed from the pool.
  • Only the IP detected by Ping is removed from the pool.
  • The IP will be shown, even after the conflict is resolved.

Question 188

Question
The Bigtime router is unable to authenticate to the Littletime router. What is the cause of the problem?
Image:
Captura48.PNG (image/PNG)
Answer
  • The usernames are incorrectly configured on the two routers.
  • The passwords do not match on the two routers.
  • CHAP authentication cannot be used on a serial interface.
  • The routers cannot be connected from interface S0/0 to interface S0/0.
  • With CHAP authentication, one router must authenticate to another router. The routers cannot be configured to authenticate to each other. Answer: B

Question 189

Question
Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two.)
Answer
  • Set the IP gateway to be used by the network.
  • Perform host discovery used DHCPDISCOVER message.
  • Configure IP address parameters from DHCP server to a host.
  • Provide an easy management of layer 3 devices.
  • Monitor IP performance using the DHCP server.
  • Assign and renew IP address from the default pool.

Question 190

Question
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? (Choose two.)
Answer
  • network or subnetwork IP address
  • broadcast address on the network
  • IP address leased to the LAN
  • IP address used by the interfaces
  • manually assigned address to the clients
  • designated IP address to the DHCP server

Question 191

Question
Which two statements about static NAT translations are true? (Choose two.)
Answer
  • They allow connections to be initiated from the outside.
  • They require no inside or outside interface markings because addresses are statically defined.
  • They are always present in the NAT table.
  • They can be configured with access lists, to allow two or more connections to be initiated from the outside.

Question 192

Question
A network administrator needs to configure port security on a switch. Which two statements are true? (Choose two.)
Answer
  • The network administrator can apply port security to dynamic access ports.
  • The network administrator can apply port security to EtherChannels.
  • When dynamic MAC address learning is enabled on an interface, the switch can learn new addresses, up to the maximum defined.
  • The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
  • The network administrator can configure static secure or sticky secure MAC addresses in the voice VLAN.

Question 193

Question
A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two.)
Image:
Captura51.PNG (image/PNG)
Answer
  • Port security needs to be globally enabled.
  • Port security needs to be enabled on the interface.
  • Port security needs to be configured to shut down the interface in the event of a violation.
  • Port security needs to be configured to allow only one learned MAC address.
  • Port security interface counters need to be cleared before using the show command.
  • The port security configuration needs to be saved to NVRAM before it can become active.

Question 194

Question
Which set of commands is recommended to prevent the use of a hub in the access layer?
Answer
  • switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1
  • switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1
  • switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1
  • switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1

Question 195

Question
How does using the service password-encryption command on a router provide additional security?
Answer
  • by encrypting all passwords passing through the router
  • by encrypting passwords in the plain text configuration file
  • by requiring entry of encrypted passwords for access to the device
  • by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
  • by automatically suggesting encrypted passwords for use in configuring the router

Question 196

Question
Statements A, B, C, and D of ACL 10 have been entered in the shown order and applied to interface E0 inbound, to prevent all hosts (except those whose addresses are the first and last IP of subnet 172.21.1.128/28) from accessing the network. But as is, the ACL does not restrict anyone from the network. How can the ACL statements be re-arranged so that the system works as intended?
Answer
  • ACDB
  • BADC
  • DBAC
  • CDBA

Question 197

Question
An attempt to deny web access to a subnet blocks all traffic from the subnet. Which interface command immediately removes the effect of ACL 102?
Answer
  • no ip access-class 102 in
  • no ip access-class 102 out
  • no ip access-group 102 in
  • no ip access-group 102 out
  • no ip access-list 102 in

Question 198

Question
Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU?
Answer
  • BackboneFast
  • UplinkFast
  • Root Guard
  • BPDU Guard
  • BPDU Filter

Question 199

Question
When you are troubleshooting an ACL issue on a router, which command would you use to verify which interfaces are affected by the ACL?
Answer
  • show ip access-lists
  • show access-lists
  • show interface
  • show ip interface
  • list ip interface

Question 200

Question
A network administrator cannot establish a Telnet session with the indicated router. What is the cause of this failure?
Image:
Captura55.PNG (image/PNG)
Answer
  • A Level 5 password is not set.
  • An ACL is blocking Telnet access.
  • The vty password is missing.
  • The console password is missing.

Question 201

Question
Which statement about access lists that are applied to an interface is true?
Answer
  • You can place as many access lists as you want on any interface.
  • You can apply only one access list on any interface.
  • You can configure one access list, per direction, per Layer 3 protocol.
  • You can apply multiple access lists with the same protocol or in different directions.

Question 202

Question
Which item represents the standard IP ACL?
Answer
  • access-list 110 permit ip any any
  • access-list 50 deny 192.168.1.1 0.0.0.255
  • access list 101 deny tcp any host 192.168.1.1
  • access-list 2500 deny tcp any host 192.168.1.1 eq 22

Question 203

Question
A network administrator is configuring ACLs on a Cisco router, to allow traffic from hosts on networks 192.168.146.0, 192.168.147.0, 192.168.148.0, and 192.168.149.0 only. Which two ACL statements, when combined, would you use to accomplish this task? (Choose two.)
Answer
  • access-list 10 permit ip 192.168.146.0 0.0.1.255
  • access-list 10 permit ip 192.168.147.0 0.0.255.255
  • access-list 10 permit ip 192.168.148.0 0.0.1.255
  • access-list 10 permit ip 192.168.149.0 0.0.255.255
  • access-list 10 permit ip 192.168.146.0 0.0.0.255
  • access-list 10 permit ip 192.168.146.0 255.255.255.0

Question 204

Question
Which statement about access lists that are applied to an interface is true?
Answer
  • You can place as many access lists as you want on any interface.
  • You can apply only one access list on any interface.
  • You can configure one access list, per direction, per Layer 3 protocol.
  • You can apply multiple access lists with the same protocol or in different directions.

Question 205

Question
Which item represents the standard IP ACL?
Answer
  • access-list 110 permit ip any any
  • access-list 50 deny 192.168.1.1 0.0.0.255
  • access list 101 deny tcp any host 192.168.1.1
  • access-list 2500 deny tcp any host 192.168.1.1 eq 22

Question 206

Question
A network administrator is configuring ACLs on a Cisco router, to allow traffic from hosts on networks 192.168.146.0, 192.168.147.0, 192.168.148.0, and 192.168.149.0 only. Which two ACL statements, when combined, would you use to accomplish this task? (Choose two.)
Answer
  • access-list 10 permit ip 192.168.146.0 0.0.1.255
  • access-list 10 permit ip 192.168.147.0 0.0.255.255
  • access-list 10 permit ip 192.168.148.0 0.0.1.255
  • access-list 10 permit ip 192.168.149.0 0.0.255.255
  • access-list 10 permit ip 192.168.146.0 0.0.0.255
  • access-list 10 permit ip 192.168.146.0 255.255.255.0

Question 207

Question
What can be done to secure the virtual terminal interfaces on a router? (Choose two.)
Answer
  • Administratively shut down the interface.
  • Physically secure the interface.
  • Create an access list and apply it to the virtual terminal interfaces with the access-group command.
  • Configure a virtual terminal password and login process.
  • Enter an access list and apply it to the virtual terminal interfaces using the access-class command.

Question 208

Question
Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch? (Choose two.)
Answer
  • SW1#show port-secure interface FastEthernet 0/12
  • SW1#show switchport port-secure interface FastEthernet 0/12
  • SW1#show running-config
  • SW1#show port-security interface FastEthernet 0/12
  • SW1#show switchport port-security interface FastEthernet 0/12

Question 209

Question
The following commands are executed on interface fa0/1 of 2950Switch. 2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1 The Ethernet frame that is shown arrives on interface fa0/1. What two functions will occur when this frame is received by 2950Switch? (Choose two.)
Image:
Captura56.PNG (image/PNG)
Answer
  • The MAC address table will now have an additional entry of fa0/1 FFFF.FFFF.FFFF.
  • Only host A will be allowed to transmit frames on fa0/1.
  • This frame will be discarded when it is received by 2950Switch.
  • All frames arriving on 2950Switch with a destination of 0000.00aa.aaaa will be forwarded out fa0/1.
  • Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1.
  • Only frames from source 0000.00bb.bbbb, the first learned MAC address of 2950Switch, will be forwarded out fa0/1.

Question 210

Question
What will be the result if the following configuration commands are implemented on a Cisco switch? Switch(config-if)# switchport port-security Switch(config-if)# switchport port-security mac-address sticky
Answer
  • A dynamically learned MAC address is saved in the startup-configuration file.
  • A dynamically learned MAC address is saved in the running-configuration file.
  • A dynamically learned MAC address is saved in the VLAN database.
  • Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received
  • Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.

Question 211

Question
A network administrator attempts to ping Host2 from Host1 and receives the results that are shown. What is the problem?
Answer
  • The link between Host1 and Switch1 is down.
  • TCP/IP is not functioning on Host1
  • The link between Router1 and Router2 is down.
  • The default gateway on Host1 is incorrect.
  • Interface Fa0/0 on Router1 is shutdown.
  • The link between Switch1 and Router1 is down.

Question 212

Question
Hosts in network 192.168.2.0 are unable to reach hosts in network 192.168.3.0. Based on the output from RouterA, what are two possible reasons for the failure? (Choose two.)
Image:
Captura62.PNG (image/PNG)
Answer
  • The cable that is connected to S0/0 on RouterA is faulty.
  • Interface S0/0 on RouterB is administratively down.
  • Interface S0/0 on RouterA is configured with an incorrect subnet mask.
  • The IP address that is configured on S0/0 of RouterB is not in the correct subnet.
  • Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.
  • The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA.

Question 213

Question
An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?
Answer
  • data link layer
  • application layer
  • access layer
  • session layer
  • network layer

Question 214

Question
The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)
Answer
  • Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
  • Ensure that cables A and B are straight-through cables.
  • Ensure cable A is plugged into a trunk port.
  • Ensure the switch has power.
  • Reboot all of the devices.
  • Reseat all cables.

Question 215

Question
The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems? (Choose two.)
Image:
Captura65.PNG (image/PNG)
Answer
  • Configure the gateway on Host A as 10.1.1.1.
  • Configure the gateway on Host B as 10.1.2.254.
  • Configure the IP address of Host A as 10.1.2.2.
  • Configure the IP address of Host B as 10.1.2.2.
  • Configure the masks on both hosts to be 255.255.255.224.
  • Configure the masks on both hosts to be 255.255.255.240.

Question 216

Question
A problem with network connectivity has been observed. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?
Answer
  • Host B would not be able to access the server in VLAN9 until the cable is reconnected.
  • Communication between VLAN3 and the other VLANs would be disabled.
  • The transfer of files from Host B to the server in VLAN9 would be significantly slower.
  • For less than a minute, Host B would not be able to access the server in VLAN9. Then normal network function would resume.

Question 217

Question
HostA cannot ping HostB. Assuming routing is properly configured, what is the cause of this problem?
Answer
  • HostA is not on the same subnet as its default gateway.
  • The address of SwitchA is a subnet address.
  • The Fa0/0 interface on RouterA is on a subnet that can't be used.
  • The serial interfaces of the routers are not on the same subnet.
  • The Fa0/0 interface on RouterB is using a broadcast address.

Question 218

Question
Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.)
Answer
  • ping
  • tracert
  • ipconfig
  • show ip route
  • winipcfg
  • F. show interfaces

Question 219

Question
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?
Answer
  • The OSPF area is not configured properly.
  • The priority on R1 should be set higher.
  • The cost on R1 should be set higher.
  • The hello and dead timers are not configured properly.
  • A backup designated router needs to be added to the network.
  • The OSPF process ID numbers must match.

Question 220

Question
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?
Answer
  • during high traffic periods
  • after broken links are re-established
  • when upper-layer protocols require high reliability
  • in an improperly implemented redundant topology
  • when a dual ring topology is in use

Question 221

Question
In the Frame Relay network, which IP addresses would be assigned to the interfaces with point-to- point PVCs?
Image:
Captura72.PNG (image/PNG)
Answer
  • DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.10.1 /24 DLCI 99: 192.168.10.2 /24 DLCI 28: 192.168.10.3 /24
  • DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.11.1 /24 DLCI 99: 192.168.12.1 /24 DLCI 28: 192.168.13.1 /24
  • DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.11.1 /24 DLCI 99: 192.168.10.2 /24 DLCI 28: 192.168.11.2 /24
  • DLCI 16: 192.168.10.1 /24 DLCI 17: 192.168.10.2 /24 DLCI 99: 192.168.10.3 /24 DLCI 28: 192.168.10.4 /24

Question 222

Question
Which command is used to enable CHAP authentication, with PAP as the fallback method, on a serial interface?
Answer
  • Router(config-if)# ppp authentication chap fallback ppp
  • Router(config-if)# ppp authentication chap pap
  • Router(config-if)# authentication ppp chap fallback ppp
  • Router(config-if)# authentication ppp chap pap

Question 223

Question
Which protocol is an open standard protocol framework that is commonly used in VPNs, to provide secure end-to-end communications?
Answer
  • RSA
  • L2TP
  • IPsec
  • PPTP

Question 224

Question
At which layer of the OSI model does PPP perform?
Answer
  • Layer 2
  • Layer 3
  • Layer 4
  • Layer 5

Question 225

Question
The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command?
Answer
  • This command should be executed from the global configuration mode.
  • The IP address 10.121.16.8 is the local router port used to forward data.
  • 102 is the remote DLCI that will receive the information.
  • This command is required for all Frame Relay configurations.
  • The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.

Question 226

Question
Which two options are valid WAN connectivity methods? (Choose two.)
Answer
  • PPP
  • WAP
  • DSL
  • L2TPv3
  • Ethernet

Question 227

Question
Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms?
Answer
  • HDLC
  • PPP
  • X.25
  • Frame Relay

Question 228

Question
Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?
Answer
  • IETF
  • ANSI Annex D
  • Q9333-A Annex A
  • HDLC

Question 229

Question
RouterA is unable to reach RouterB. Both routers are running IOS version 12.0. After reviewing the command output and graphic, what is the most likely cause of the problem?
Image:
Captura73.PNG (image/PNG)
Answer
  • incorrect bandwidth configuration
  • incorrect LMI configuration
  • incorrect map statement
  • incorrect IP address

Question 230

Question
What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?
Image:
Captura74.PNG (image/PNG)
Answer
  • The Serial0/0 interface is passing traffic.
  • The DLCI 100 was dynamically allocated by the router.
  • The Serial0/0 interface acquired the IP address of 172.16.3.1 from a DHCP server.
  • The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud.
  • The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP.

Question 231

Question
A network administrator needs to configure a serial link between the main office and a remote location. The router at the remote office is a non-Cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?
Answer
  • Main(config)# interface serial 0/0 Main(config-if)# ip address 172.16.1.1 255.255.255.252 Main(config-if)# no shut
  • Main(config)# interface serial 0/0 Main(config-if)# ip address 172.16.1.1 255.255.255.252 Main(config-if)# encapsulation ppp Main(config-if)# no shut
  • Main(config)# interface serial 0/0 Main(config-if)# ip address 172.16.1.1 255.255.255.252 Main(config-if)# encapsulation frame-relay Main(config-if)# authentication chap Main(config-if)# no shut
  • Main(config)# interface serial 0/0 Main(config-if)#ip address 172.16.1.1 255.255.255.252 Main(config-if)#encapsulation ietf Main(config-if)# no shut

Question 232

Question
What are three reasons that an organization with multiple branch offices and roaming users might implement a Cisco VPN solution instead of point-to-point WAN links? (Choose three.)
Answer
  • reduced cost
  • better throughput
  • broadband incompatibility
  • increased security
  • scalability
  • reduced latency

Question 233

Question
Which two statistics appear in show frame-relay map output? (Choose two.)
Answer
  • the number of BECN packets that are received by the router
  • the value of the local DLCI
  • the number of FECN packets that are received by the router
  • the status of the PVC that is configured on the router
  • the IP address of the local router

Question 234

Question
Users have been complaining that their Frame Relay connection to the corporate site is very slow. The network administrator suspects that the link is overloaded. Based on the partial output of the Router# show frame relay pvc command shown in the graphic, which output value indicates to the local router that traffic sent to the corporate site is experiencing congestion?
Image:
Captura22.JPG (image/JPG)
Answer
  • DLCI = 100
  • last time PVC status changed 00:25:40
  • in BECN packets 192
  • in FECN packets 147
  • in DE packets 0

Question 235

Question
Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link?
Answer
  • show frame-relay lmi
  • show frame-relay map
  • show frame-relay pvc
  • show interfaces serial

Question 236

Question
It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit. Which of the following procedures are required to accomplish this task? (Choose three.)
Answer
  • Remove the IP address from the physical interface.
  • Encapsulate the physical interface with multipoint PPP.
  • Create the virtual interfaces with the interface command.
  • Configure each subinterface with its own IP address.
  • Disable split horizon to prevent routing loops between the subinterface networks
  • Configure static Frame Relay map entries for each subinterface network.

Question 237

Question
What occurs on a Frame Relay network when the CIR is exceeded?
Answer
  • All TCP traffic is marked discard eligible.
  • All UDP traffic is marked discard eligible and a BECN is sent.
  • All TCP traffic is marked discard eligible and a BECN is sent
  • All traffic exceeding the CIR is marked discard eligible.

Question 238

Question
Which two statements about using the CHAP authentication mechanism in a PPP link are true? (Choose two.)
Answer
  • CHAP uses a two-way handshake.
  • CHAP uses a three-way handshake.
  • CHAP authentication periodically occurs after link establishment.
  • CHAP authentication passwords are sent in plaintext.
  • CHAP authentication is performed only upon link establishment.
  • CHAP has no protection from playback attacks.

Question 239

Question
Which statement describes DLCI 17?
Image:
Captura30.JPG (image/JPG)
Answer
  • DLCI 17 describes the ISDN circuit between R2 and R3.
  • DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
  • DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
  • DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.

Question 240

Question
What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?
Answer
  • defines the destination IP address that is used in all broadcast packets on DCLI 202
  • defines the source IP address that is used in all broadcast packets on DCLI 202
  • defines the DLCI on which packets from the 192.168.1.2 IP address are received
  • defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address

Question 241

Question
Which PPP subprotocol negotiates authentication options?
Answer
  • NCP
  • ISDN
  • SLIP
  • LCP
  • DLCI

Question 242

Question
What are two characteristics of Frame Relay point-to-point subinterfaces? (Choose two.)
Answer
  • They create split-horizon issues.
  • They require a unique subnet within a routing domain.
  • They emulate leased lines
  • They are ideal for full-mesh topologies
  • They require the use of NBMA options when using OSPF.

Question 243

Question
What command is used to verify the DLCI destination address in a Frame Relay static configuration?
Answer
  • show frame-relay pvc
  • show frame-relay lmi
  • show frame-relay map
  • show frame relay end-to-end

Question 244

Question
What is the purpose of Inverse ARP?
Answer
  • to map a known IP address to a MAC address
  • to map a known DLCI to a MAC address
  • to map a known MAC address to an IP address
  • to map a known DLCI to an IP address
  • to map a known IP address to a SPID
  • to map a known SPID to a MAC address

Question 245

Question
What is a valid HSRP virtual MAC address?
Answer
  • 0000.5E00.01A3
  • 0007.B400.AE01
  • 0000.0C07.AC15
  • 0007.5E00.B301

Question 246

Question
In GLBP, which router will respond to client ARP requests?
Answer
  • The active virtual gateway will reply with one of four possible virtual MAC addresses
  • All GLBP member routers will reply in round-robin fashion.
  • The active virtual gateway will reply with its own hardware MAC address
  • The GLBP member routers will reply with one of four possible burned in hardware addresses

Question 247

Question
Which statement describes VRRP object tracking?
Answer
  • It monitors traffic flow and link utilization.
  • It ensures the best VRRP router is the virtual router master for the group
  • It causes traffic to dynamically move to higher bandwidth links.
  • It thwarts man-in-the-middle attacks

Question 248

Question
What are three benefits of GLBP? (Choose three.)
Answer
  • GLBP supports up to eight virtual forwarders per GLBP group
  • GLBP supports clear text and MD5 password authentication between GLBP group members
  • GLBP is an open source standardized protocol that can be used with multiple vendors
  • GLBP supports up to 1024 virtual routers
  • GLBP can load share traffic across a maximum of four routers
  • GLBP elects two AVGs and two standby AVGs for redundancy

Question 249

Question
Which three statements about HSRP operation are true? (Choose three.)
Answer
  • The virtual IP address and virtual MA+K44C address are active on the HSRP Master router
  • The HSRP default timers are a 3 second hello interval and a 10 second dead interval.
  • HSRP supports only clear-text authentication
  • The HSRP virtual IP address must be on a different subnet than the routers' interfaces on the same LAN
  • The HSRP virtual IP address must be the same as one of the router's interface addresses on the LAN
  • HSRP supports up to 255 groups per interface, enabling an administrative form of load balancing

Question 250

Question
Which three statements about Syslog utilization are true? (Choose three.)
Answer
  • Utilizing Syslog improves network performance
  • The Syslog server automatically notifies the network administrator of network problems
  • A Syslog server provides the storage space necessary to store log files without using router disk space
  • There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages
  • Enabling Syslog on a router automatically enables NTP for accurate time stamping
  • A Syslog server helps in aggregation of logs and alerts

Question 251

Question
A network administrator enters the following command on a router: logging trap 3. What are three message types that will be sent to the Syslog server? (Choose three.)
Answer
  • informational
  • emergency
  • warning
  • critical
  • debug
  • error

Question 252

Question
What is the default Syslog facility level?
Answer
  • local4
  • local5
  • local6
  • local7

Question 253

Question
What command instructs the device to timestamp Syslog debug messages in milliseconds?
Answer
  • service timestamps log datetime localtime
  • service timestamps debug datetime msec
  • service timestamps debug datetime localtime
  • service timestamps log datetime msec

Question 254

Question
What is the cause of the Syslog output messages?
Answer
  • The EIGRP neighbor on Fa0/1 went down due to a failed link
  • The EIGRP neighbor connected to Fa0/1 is participating in a different EIGRP process, causing the adjacency to go down.
  • A shut command was executed on interface Fa0/1, causing the EIGRP adjacency to go down
  • Interface Fa0/1 has become error disabled, causing the EIGRP adjacency to go down

Question 255

Question
What are three components that comprise the SNMP framework? (Choose three.)
Answer
  • MIB
  • agent
  • set
  • AES
  • supervisor
  • manager

Question 256

Question
What SNMP message alerts the manager to a condition on the network?
Answer
  • response
  • get
  • trap
  • capture

Question 257

Question
What authentication type is used by SNMPv2?
Answer
  • HMAC-MD5
  • HMAC-SHA
  • CBC-DES
  • community strings

Question 258

Question
Which three statements about the features of SNMPv2 and SNMPv3 are true? (Choose three.)
Answer
  • SNMPv3 enhanced SNMPv2 security features
  • SNMPv3 added the Inform protocol message to SNMP
  • SNMPv2 added the Inform protocol message to SNMP.
  • SNMPv3 added the GetBulk protocol messages to SNMP
  • SNMPv2 added the GetBulk protocol message to SNMP
  • SNMPv2 added the GetNext protocol message to SNMP

Question 259

Question
What are three reasons to collect Netflow data on a company network? (Choose three.)
Answer
  • To identify applications causing congestion
  • To authorize user network access
  • To report and alert link up / down instances
  • To diagnose slow network performance, bandwidth hogs, and bandwidth utilization
  • To detect suboptimal routing in the network.
  • To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service

Question 260

Question
What Netflow component can be applied to an interface to track IPv4 traffic?
Answer
  • flow monitor
  • flow record
  • flow sampler
  • flow exporter

Question 261

Question
What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network performance?
Answer
  • SNMP
  • Netflow
  • WCCP
  • IP SLA

Question 262

Question
What command visualizes the general NetFlow data on the command line?
Answer
  • show ip flow export
  • show ip flow top-talkers
  • show ip cache flow
  • show mls sampling
  • show mls netflow ip

Question 263

Question
What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow? (Choose three.)
Answer
  • source IP address
  • source MAC address
  • egress interface
  • ingress interface
  • destination IP address
  • IP next-hop

Question 264

Question
What are three factors a network administrator must consider before implementing Netflow in the network? (Choose three.)
Answer
  • CPU utilization
  • where Netflow data will be sent
  • number of devices exporting Netflow data
  • port availability
  • SNMP version
  • WAN encapsulation

Question 265

Question
A network administrator is configuring an EtherChannel between SW1 and SW2. The SW1 configuration is shown. What is the correct configuration for SW2?
Image:
Captura33.JPG (image/JPG)
Answer
  • interface FastEthernet 0/1 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk
  • interface FastEthernet 0/1 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk
  • interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk
  • interface FastEthernet 0/1 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk

Question 266

Question
Which two statements about the OSPF Router ID are true? (Choose two.)
Answer
  • It identifies the source of a Type 1 LSA
  • It should be the same on all routers in an OSPF routing instance.
  • By default, the lowest IP address on the router becomes the OSPF Router ID.
  • The router automatically chooses the IP address of a loopback as the OSPF Router ID
  • It is created using the MAC Address of the loopback interface

Question 267

Question
What parameter can be different on ports within an EtherChannel?
Answer
  • speed
  • DTP negotiation settings
  • trunk encapsulation
  • duplex

Question 268

Question
What are two benefits of using a single OSPF area network design? (Choose two.)
Answer
  • It is less CPU intensive for routers in the single area
  • It reduces the types of LSAs that are generated
  • It removes the need for virtual links
  • It increases LSA response times
  • It reduces the number of required OSPF neighbor adjacencies

Question 269

Question
What set of commands was configured on interface Fa0/3 to produce the given output?
Answer
  • interface FastEthernet 0/3 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk
  • interface FastEthernet 0/3 channel-group 2 mode passive switchport trunk encapsulation dot1q switchport mode trunk
  • interface FastEthernet 0/3 channel-group 2 mode active switchport trunk encapsulation dot1q switchport mode trunk
  • interface FastEthernet 0/3 channel-group 2 mode on switchport trunk encapsulation dot1q switchport mode trunk

Question 270

Question
What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.)
Answer
  • It requires the use of ARP.
  • It can support multiple IPv6 subnets on a single link
  • It supports up to 2 instances of OSPFv3 over a common link
  • It routes over links rather than over networks

Question 271

Question
If the devices produced the given output, what is the cause of the EtherChannel problem?
Answer
  • SW1's Fa0/1 interface is administratively shut down
  • There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces
  • There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces
  • There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces

Question 272

Question
When a router undergoes the exchange protocol within OSPF, in what order does it pass through each state?
Answer
  • exstart state > loading state > exchange state > full state
  • exstart state > exchange state > loading state > full state
  • exstart state > full state > loading state > exchange state
  • loading state > exchange state > full state > exstart state

Question 273

Question
A network administrator creates a layer 3 EtherChannel, bundling four interfaces into channel group 1. On what interface is the IP address configured?
Answer
  • the port-channel 1 interface
  • the highest number member interface
  • all member interfaces
  • the lowest number member interface

Question 274

Question
What command sequence will configure a router to run OSPF and add network 10.1.1.0 /24 to area 0?
Answer
  • router ospf area 0 network 10.1.1.0 255.255.255.0 area 0
  • router ospf network 10.1.1.0 0.0.0.255
  • router ospf 1 network 10.1.1.0 0.0.0.255 area 0
  • router ospf area 0 network 10.1.1.0 0.0.0.255 area 0
  • router ospf network 10.1.1.0 255.255.255.0 area 0
  • router ospf 1 network 10.1.1.0 0.0.0.255

Question 275

Question
If the router Cisco returns the given output and has not had its router ID set manually, what value will OSPF use as its router ID?
Image:
Captura41.JPG (image/JPG)
Answer
  • 192.168.1.1
  • 172.16.1.1
  • 1.1.1.1
  • 2.2.2.2

Question 276

Question
What OSPF command, when configured, will include all interfaces into area 0?
Answer
  • network 0.0.0.0 255.255.255.255 area 0
  • network 0.0.0.0 0.0.0.0 area 0
  • network 255.255.255.255 0.0.0.0 area 0
  • network all-interfaces area 0

Question 277

Question
Which statement describes the process ID that is used to run OSPF on a router?
Answer
  • It is globally significant and is used to represent the AS number
  • It is locally significant and is used to identify an instance of the OSPF database
  • It is globally significant and is used to identify OSPF stub areas
  • It is locally significant and must be the same throughout an area

Question 278

Question
Which three are the components of SNMP? (Choose three)
Answer
  • MIB
  • SNMP Manager
  • SysLog Server
  • SNMP Agent
  • Set

Question 279

Question
What are the Popular destinations for syslog messages to be saved?
Answer
  • Flash
  • The logging buffer .RAM
  • The console terminal
  • Other terminals
  • Syslog server

Question 280

Question
Syslog was configured with a level 3 trap. Which 3 types of logs would be generated (choose three)
Answer
  • Emergencies
  • Alerts
  • Critical
  • Errors
  • Warnings

Question 281

Question
What are the benefit of using Netflow? (Choose three.)
Answer
  • Network, Application & User Monitoring
  • Network Planning
  • Security Analysis
  • Accounting/Billing

Question 282

Question
Which protocol can cause overload on a CPU of a managed device?
Answer
  • Netflow
  • WCCP
  • IP SLA
  • SNMP

Question 283

Question
What are the three things that the Netflow uses to consider the traffic to be in a same flow?
Answer
  • IP address
  • Interface name
  • Port numbers
  • L3 protocol type
  • MAC address

Question 284

Question
What is the alert message generated by SNMP agents called ?
Answer
  • TRAP
  • INFORM
  • GET
  • SET

Question 285

Question
Which three features are added in SNMPv3 over SNMPv2?
Answer
  • Message Integrity
  • Compression
  • Authentication
  • Encryption
  • Error Detection

Question 286

Question
In a GLBP network, who is responsible for the arp request?
Answer
  • AVF
  • AVG
  • Active Router
  • Standby Router
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