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CCNP Switch 1

Description

CCNP Switch Exam 50
Tyson Mckay
Quiz by Tyson Mckay, updated more than 1 year ago
Tyson Mckay
Created by Tyson Mckay over 6 years ago
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Resource summary

Question 1

Question
A switch was added into the production network to increase port capacity. A network engineer is configuring the switch for DHCP snooping and IP Source Guard, but is unable to configure ip verify source under several of the interfaces. Which Option is the cause of the problem?
Answer
  • Cisco Discovery Protocol v2 carries native VLAN information, but v1 does not
  • Cisco Discovery Protocol v1 carries native VLAN information, but v2 does not
  • Cisco Discovery Protocol v1 and v2 carry native VLAN information
  • Cisco Discovery Protocol v3 carries native VLAN information, but versions 1 and 2 do not.

Question 2

Question
What is the maximum number of virtual MAC addresses that GLBP allows per group
Answer
  • 6
  • 4
  • 2
  • 8

Question 3

Question
A Network engineer wants to analyze all incoming and outgoing packets for an interface that is connected to an access switch. Which three items must be configured to mirror traffic to a packet sniffer that is connected to the distributions switch?
Image:
Switch2.1 (binary/octet-stream)
Answer
  • A monitor session on the distribution switch with remote SPAN VLAN as the source and physical interface as the destination.
  • A monitor session on the access switch with a physical interface source and the remote SPAN VLAN as the destination
  • A monitor session on the distribution switch with a physical interface as the source and a physical interface as the destination
  • A remoter SPAN VLAN on the distribution and access layer switch
  • A monitor session on the distribution switch with a physical interface as the source and the remote SPAN VLAN as the destination.
  • A monitor session on the access switch with a remote SPAN VLAN source and the physical interface as the destination

Question 4

Question
Which statement about using native VLAN's to carry untagged frames is true?
Answer
  • Cisco Discovery Protocol v2 carries native VLAN information, but v1 does not
  • Cisco Discovery Protocol v1 carries native VLAN information, but v2 does not
  • Cisco Discovery Protocol v1 and v2 carry native VLAN information
  • Cisco Discovery Protocol v3 carries native VLAN information, but versions 1 and 2 do not.

Question 5

Question
When you configure a private VLAN, which type of port must you configure the gateway router port on?
Answer
  • Community port
  • Access port
  • Promiscuous port
  • Isolated port

Question 6

Question
What is the result of the configuration?
Image:
Q6 (binary/octet-stream)
Answer
  • The EtherChannels would not form because the load-balancing method must match on the devices
  • The EtherChannels would form but network loops would occur because the load-balancing methods do not match
  • The EtherChannels would form and function properly even though the load-balancing and EtherChannel modes do not match
  • The EtherChannel would form and both devices would use the dst-ip load-balancing method because Switch1 is configured with EtherChannel mode active.

Question 7

Question
How do you configure loop guard on a Cisco switch?
Answer
  • (config-if)#spanning-tree loop
  • (config-if)#spanning-tree guard loop
  • (config-if)#spanning-tree loop guard default
  • (config-if)#spanning-tree loop-guard default
  • (config-if)#spanning-tree guard

Question 8

Question
Which option is the maximum frame size for an 802.1Q frame?
Answer
  • 64 bytes
  • 1518 bytes
  • 1522 bytes
  • 68 bytes

Question 9

Question
After the recent upgrade of the switching infrastructure, the network engineer notices that the port roles that were once blocking are now defined as alternate and backup. What is the reason for this change?
Answer
  • The administrator has defined the switch as the root in the STP domain.
  • The new switches are using RSTP instead of legacy IEEE 802.1D STP
  • IEEE 802.1D STP and PortFast have been configured by default on all newly implemented Cisco Catalyst switches.
  • The port roles have been adjusted based on the interface bandwidth and timers of the new Cisco Catalyst switches.

Question 10

Question
Private VLANs (PVLANs) have two secondary VLAN types.
Answer
  • Community
  • Primary
  • Isolated
  • Promiscuous

Question 11

Question
Select a valid VRRP configuration from a list of possible configurations. Choose 3
Answer
  • vrrp [group number] priority [priority]
  • vrrp [grou-number] preempt
  • standby [group number] preempt
  • standby [group number priority [priority]
  • vrrp [group-number] ip [ip-address]

Question 12

Question
Which statement about Cisco Discovery Protocol configuration on a Cisco switch is true?
Answer
  • CDP is enabled by default and can be disabled globally with the command no cdp enable
  • CDP is disabled by default and can be enabled globally with the command cdp enable
  • CDP is enabled by default and can be disabled globally with the command no cdp run
  • CDP is disabled by default and can be enabled globally with the command cdp run

Question 13

Question
Which description of the effect of entering the switch port trunk allowed vlan 2, 3, 4, command on FastEthernet0/2 is true?
Image:
Switch13 (binary/octet-stream)
Answer
  • The command in unsupported on a trunk where VLANs are already being pruned manually
  • The two workstations continue to communicate without a default gateway configured
  • The running configuration displays switch port trunk allowed vlan 1 - 5 for Fa0/2
  • The two workstations stop communicating because they are on VLAN 5. Which is not allowed on the trunk

Question 14

Question
Switch A, B and C are trunked together and have been properly configured for VTP. Switch B has all VLANs but Switch C in not receiving traffic from certian VLANs. What would cause this issue?
Image:
Switch14 (binary/octet-stream)
Answer
  • The VTP version number of Switch B is higher that that of Switch A
  • VTP Pruning is configured globally on all switches and it removed VLANs from the trunk interface that is connected to Switch C.
  • A VTP authentication mismatch occurred between Switch A and Switch B
  • The trunk between Switch A and Switch B is misconfigured

Question 15

Question
When using the sh int trunk command there is no output. What is wrong. int faX/X switchport trunk vlan x, x,x,x switchport mode trunk exit sh vlan VLAN name status ports 1 default active Fa0/1, Fa0/3, Fa0/3, FaX/X sh int trunk
Answer
  • The other side is configured as an access port
  • the link is down
  • the interface needs the no shut command
  • it is mission the switchport command

Question 16

Question
EtherChannel guard misconfig is configured on a switch, which technology supports that?
Answer
  • STP
  • LACP
  • Port Security
  • PagP

Question 17

Question
What happens at an access port with a tagged packet is received with a VLAN ID of an access port?
Answer
  • The tag is removed and the packet is forwarded on the VLAN of the access port
  • The packet is dropped
  • The tag is removed and the packet is forwarded to the VLAN mentioned in the tag
  • The tag is removed and the packet is forwarded on the VLAN of the trunk port

Question 18

Question
Which Authentication service is needed to configure 802.1x?
Answer
  • TACACS+
  • RADIUS with EAP Extention
  • RADIUS using VSA
  • RADIUS with CoA

Question 19

Question
All interfaces are active. DSW2 has not become the active device for the VLAN 103 HSRP group. As related to the VLAN 103 HSRP group, what can be done to make the group function properly?
Answer
  • On DSW2, increase the decrement value in the track command to a value greater than 10 and less than 50
  • On DSW1 disable preempt
  • On DSW1 decrease the priority value to a value less than 190 and greater than 150.
  • On DSW2 increase the priority value to a value greater than 200 and less than 250.

Question 20

Question
Which set of configurations will result in all ports on both switches successfully bundling into an EtherChannel?
Image:
Sw20 (binary/octet-stream)
Answer
  • switch 1 channel-group 1 mode desirable, switch 2 channel-group 1 mode passive
  • switch 1 channel-group 1 mode active, switch 2 channel-group 1 mode auto
  • switch 1 channel-group 1 mode desirable, switch 2 channel-group 1 mode auto
  • switch 1 channel-group 1 mode on, switch 2 channel-group 1 mode auto

Question 21

Question
An Engineer is configuring EtherChannel between two switches and notices the console message on switch 2. Based on the output which option describes the reason for this error?
Image:
Sw21 (binary/octet-stream)
Answer
  • The port channel interface numbers do not match
  • Switch 2 has too many member ports configured
  • The EtherChannel protocols do not match
  • Switch 1 does not have enough member ports configured

Question 22

Question
Which statement about LLDP-MED is true?
Answer
  • LLDP-MED is an extension to LLDP that operates between endpoint devices and network devices.
  • LLDP-MED is an extension to LLDP that operates between routers that run BGP
  • LLDP-MED is an extension to LLDP that operates only between network devices
  • LLDP-MED is an extention to LLDP that operates only between endpoint devices

Question 23

Question
After UDLD is implemented a Network Administrator notices that one port stops received UDLD packets. This ports continues to re-establish unit after eight failed retries. The port then transitions into the errdisable state. Which option describes what causes the port to go into the errdisable state?
Answer
  • UDLD port is configured in aggressive mode
  • Normal UDLD operations that prevent traffic loops
  • UDLD timers are inconsistent
  • UDLD port is enabled globally

Question 24

Question
An engineer is configuring EtherChannel between two switches when he notices the error message on Switch 2 (channel-misconfiguring error), based on this output what is the problem?
Answer
  • The EtherChannel interface of Switch 2 in not configured
  • The EtherChannel protocol on Switch 1 is not correct
  • The EtherChannel interface of Switch 1 is not configured
  • The EtherChannel on the Switch 1 is using incorrect member ports

Question 25

Question
Which statements about SPAN source and destination ports during an active session are true? Choose 2
Answer
  • The source port can be monitored in multiple SPAN sessions
  • The destination port can be a destination in multiple SPAN sessions
  • The destination port does not participate in STP
  • The source port can be only an Ethernet physical port
  • You can mix individual source ports and source VLANs within a singe session.

Question 26

Question
While troubleshooting a network outage, a network engineer discovers an unusually high level of broadcast traffic coming from one of the switch interfaces. Which option decreases consumption of bandwidth used by broadcast traffic?
Answer
  • Integrated routing and bridging
  • SDM routing
  • Dynamic ARP inspection
  • Cisco IOS parser
  • Storm control

Question 27

Question
A network engineer wants to make sure that an access switch will never become a spanning tree root for VLAN 5. What action will accomplish this task?
Answer
  • Apply root guard to all outgoing neighbor interfaces
  • disable STP globally
  • enable MSTP and use a different revision number than all other switches
  • adjust STP priority to the maximum value

Question 28

Question
What is the maximum number of VLANs that can be assigned to an access switchport without a voice VLAN?
Answer
  • 0
  • 1
  • 2
  • 1024

Question 29

Question
How many bytes are added to each frame as a result of the configuration?
Image:
Sw80 (binary/octet-stream)
Answer
  • 4-bytes except the native VLAN
  • 8-bytes except the native VLAN
  • 4-bytes including the native VLAN
  • 8-bytes including the native VLAN

Question 30

Question
Which technique automatically limits VLAN traffic to only the switches that require it?
Answer
  • access list
  • VTP pruning
  • PBR
  • DTP in non-negotiate

Question 31

Question
A network is running VTPv2. After verifying all VTP setting the network engineer notices that the new switch is not receiving the list of VLANs from the server. Which action resolves this problem?
Answer
  • Reload the new switch
  • Reload the VTP server
  • Restart the VTP process on the new switch
  • Verify connected trunk ports

Question 32

Question
An administrator recently configured all ports for rapid transition using PortFast. After testing it has been determined that several ports are not transitioning as they should. What is the reason for this?
Answer
  • The STP root bridge selection is forcing key ports to remain in non-rapid transitioning mode
  • RSTP has been enabled per interface and not globally.
  • STP is unable to achieve rapid transition for trunk links
  • The switch does not have the processing power to ensure rapid transition for all ports.

Question 33

Question
What is the effect of configuring the following command on a switch? switch(config)# spanning-tree portfast bpdpufilter default
Answer
  • If BPDUs are received by a port configured for PortFast, the port transitions to the forwarding state.
  • If BPDUs are received by a port configured for Portfast then PortFast is disabled and the BPDUs are processed normally.
  • The command enables BPDU filtering on all ports regardless of whether they are configured for BPDU filtering at the interface level.
  • If BPDUs are received by a port configured for PortFast, they are ignored and none are sent.

Question 34

Question
When IP Source Guard with source IP filtering is enabled on an interface which feature must be enabled on the access VLAN for that interface?
Answer
  • Spanning-tree portfast
  • Private VLAN
  • DHCP Snooping
  • Storm control

Question 35

Question
A network engineer notices inconsistent CDP neighbors according to the diagram that is provided. The engineer notices only a single neighbor that uses CDP but it has several routing neighbor relationships. What would cause the output to show only the single neighbor?
Answer
  • CEF is enabled locally
  • The routers are connected via a layer 2 switch
  • IP routing is disabled on neighboring devices
  • CDP advertisements are inconsistent between the local and remote devices.

Question 36

Question
After configuring ne data VLANs 1020 through 1030 on the VTP server, a network engineer notices that none of the VTP clients are receiving the updates. What is the problem?
Answer
  • VTP must be stopped and restarted on the server
  • After each update to the VTP server, it takes up to 4 hours to propagate
  • Another switch in the domain is higher revision number than the server
  • The VTP server must be reloaded
  • The VTP version number must be set to version 3

Question 37

Question
Which VLAN range is eligible to be pruned when a network engineer enables VTP pruning on a switch?
Answer
  • VLANs 1-1001
  • VLANs 1-4094
  • VLANs 2-1001
  • VLANs 2-4094

Question 38

Question
An access switch at a remote location is connected to the spanning-tree root with redundant uplinks. A network engineer notices that there are issues with the physical cabling of the current root port. The engineer decides to force the secondary link to be the desired forwarding root port. What actions accomplish this task?
Answer
  • Change the link-type to point to point
  • Adjust the secondary link to have a lower priority than the primary link
  • Enable RSTP to converge using the secondary link
  • Applu a BPDU filter on the primary interface of the remote switches.

Question 39

Question
What condition was matched during an EtherChannel configuration? Choose two
Answer
  • Spanning tree port priority
  • Interface description
  • Trunk allow VLAN
  • Spanning tree cost
  • Trunk mode

Question 40

Question
When SDM templates are configured which action must be performed for the configuration to take effect?
Answer
  • shutdown
  • write memory
  • reload
  • backup config

Question 41

Question
In a switch stack environment what is the total bidirectional traffic flow between two logical counter-rotating paths?
Answer
  • 32 Gbps
  • 64 Gbps
  • 16 Gbps
  • 128 Gbps

Question 42

Question
The command storm-control broadcast level 75 65 is configured under the switch port connected to the corporate mail server. In which three ways does this command impact the traffic? Choose Three
Answer
  • Only broadcast traffic is limited by this particular storm control configuration
  • The switch resumes forwarding broadcasts when they are below 65% of bandwidth
  • Multicast traffic is dropped at 65% and broadcast traffic is dropped at 75% of the total interface bandwidth
  • The switchport is disabled when unicast traffic reaches 75% of the total interface bandwidth
  • SNMP traps are sent by default when broadcast traffic reaches 65% of the lower-level threshold
  • The switch drops broadcasts when they reach 75% of bandwidth

Question 43

Question
Pilot testing of the new switching infrastructure finds that when the root port is lost, STP immediately replaces the root port with an alternative port. Which spanning-tree technology is used to accomplish backup root port selection?
Answer
  • PVST+
  • PortFast
  • Loop Guard
  • UDLD
  • UplinkFast
  • BackboneFast

Question 44

Question
During routine maintenance it became necessary to shut down the ge1/0/1 interface on DSW1. All other interfaces were up. During this time DSW1 remained the active device for the VLAN 102 HSRP group. You have determined that there is an issue with the decrement value in the track command for the VLAN 102 HSRP group. What needs to be done to make the group function properly?
Image:
Sw95 (binary/octet-stream)
Answer
  • The decrement value on DSW1 should be greater than 11 and less than 19
  • The decrement value on DSW1 should be greater than 5 and less than 15
  • The decrement value on DSW1 should be greater than 195 and less than 205
  • The decrement value on DSW1 should be greater than 190 and less than 200
  • The decrement value on DSW1 should be greater than 9 and less than 15

Question 45

Question
After port security is deployed throughout an enterprise campus, the network team has been overwhelmed with port reset requests. They decide to configure the network to automate the process of re-enabling user ports. Which commands accomplish this task?
Answer
  • switch(config)# switchport port-security protect
  • switch(config)# switchport port-security aging type inactivity
  • switch(config)# errdisable recover interval 180
  • switch(config)# errdisable recovery cause security-violation
  • switch(config)# errdisable recovery cause psecure-violation

Question 46

Question
The users in an engineering department that connect to the same access switch cannot access the network. The network engineer found that the engineering VLAN is missing from the database. What action resolves this problem?
Answer
  • Disable VTP purning and disable 802.1q
  • Update the VTP revision number
  • Change VTP mode to server and enable 802.1q
  • Enable VTP pruning and disable 802.1q

Question 47

Question
What effect does the MAC address-table aging-time 180 command have on the MAC address table?
Answer
  • The MAC address-table will be flushed every 3 min.
  • ARP requests will be processed less frequently by the switch
  • This is how long a dynamic MAC address will remain in the CAM table
  • The MAC address-table will hold addresses 180 seconds longer than the default of 10 min
  • The default timeout period will be 360 seconds

Question 48

Question
What is the command for configuring root guard?
Answer
  • (config-if)# spanning-tree guard root
  • (config)# spanning-tree root guard
  • (config-if)# spanning tree guard root
  • (config-if)# spanning tree root guard
  • (config)# spanning tree guard root

Question 49

Question
By default what is the state of port security on a switch?
Answer
  • disabled
  • off
  • learning
  • on
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