CCNA2 Final Exam

Pregunta 1 de 107

2

Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?

Selecciona una de las siguientes respuestas posibles:

The default gateway address is not provided in the pool.
No clients have communicated with the DHCPv6 server yet.
The IPv6 DHCP pool configuration has no IPv6 address range specified.
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation

Explicación

Pregunta 2 de 107

2

Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?

Selecciona una de las siguientes respuestas posibles:

ip dhcp pool
ip address dhcp
service dhcp
ip helper-address

Explicación

Pregunta 3 de 107

2

Which kind of message is sent by a DHCP client when its IP address lease has expired?

Selecciona una de las siguientes respuestas posibles:

a DHCPDISCOVER broadcast message
a DHCPREQUEST broadcast message
a DHCPREQUEST unicast message
a DHCPDISCOVER unicast message

Explicación

Pregunta 4 de 107

2

Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4 address. What is the problem?

Selecciona una de las siguientes respuestas posibles:

A DHCP server must be installed on the same LAN as the host that is receiving the IP address.
R1 is not configured as a DHCPv4 server.
The ip address dhcp command was not issued on the interface Gi0/1.
The ip helper-address command was applied on the wrong interface.

Explicación

Pregunta 5 de 107

2

A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228-236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home?

Selecciona una de las siguientes respuestas posibles:

ip nat pool mktv 10.18.7.5 10.18.7.5
ip nat outside source static 10.18.7.5 209.165.200.225
ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443
ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365
No additional configuration is necessary.

Explicación

Pregunta 6 de 107

2

What is a disadvantage of NAT?

Selecciona una de las siguientes respuestas posibles:

There is no end-to-end addressing.
The router does not need to alter the checksum of the IPv4 packets.
The internal hosts have to use a single public IPv4 address for external communication.
The costs of readdressing hosts can be significant for a publicly addressed network.

Explicación

Pregunta 7 de 107

2

Which type of traffic would most likely have problems when passing through a NAT device?

Selecciona una de las siguientes respuestas posibles:

Telnet
IPsec
HTTP
ICMP
DNS

Explicación

Pregunta 8 de 107

2

What benefit does NAT64 provide?

Selecciona una de las siguientes respuestas posibles:

It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.

Explicación

Pregunta 9 de 107

2

Refer to the exhibit. The Gigabit interfaces on both routers have been configured with subinterface numbers that match the VLAN numbers connected to them. PCs on VLAN 10 should be able to print to the P1 printer on VLAN 12. PCs on VLAN 20 should print to the printers on VLAN 22. What interface and in what direction should you place a standard ACL that allows printing to P1 from data VLAN 10, but stops the PCs on VLAN 20 from using the P1 printer? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

R1 Gi0/1.12
R1 S0/0/0
R2 S0/0/1
R2 Gi0/1.20
inbound
outbound

Explicación

Pregunta 10 de 107

2

Which two packet filters could a network administrator use on an IPv4 extended ACL? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

destination MAC address
ICMP message type
computer type
source TCP hello address
destination UDP port number

Explicación

Pregunta 11 de 107

2

A network administrator is explaining to a junior colleague the use of the lt and gt keywords when filtering packets using an extended ACL. Where would the lt or gt keywords be used?

Selecciona una de las siguientes respuestas posibles:

in an IPv6 extended ACL that stops packets going to one specific destination VLAN
in an IPv4 named standard ACL that has specific UDP protocols that are allowed to be used on a specific server
in an IPv6 named ACL that permits FTP traffic from one particular LAN getting to another LAN
in an IPv4 extended ACL that allows packets from a range of TCP ports destined for a specific network device

Explicación

Pregunta 12 de 107

3

Which three values or sets of values are included when creating an extended access control list entry? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

access list number between 1 and 99
access list number between 100 and 199
default gateway address and wildcard mask
destination address and wildcard mask
source address and wildcard mask
source subnet mask and wildcard mask
destination subnet mask and wildcard mask

Explicación

Pregunta 13 de 107

2

A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry?

Selecciona una de las siguientes respuestas posibles:

0.0.0.127
0.0.0.255
0.0.1.255
0.0.255.255
A single ACL command and wildcard mask should not be used to specify these particular networks or other traffic will be permitted or denied and present a security risk.

Explicación

Pregunta 14 de 107

2

The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

access-class 5 in
access-list 5 deny any
access-list standard VTY
permit 10.7.0.0 0.0.0.127
access-list 5 permit 10.7.0.0 0.0.0.31
ip access-group 5 out
ip access-group 5 in

Explicación

Pregunta 15 de 107

2

A network administrator is adding ACLs to a new IPv6 multirouter environment. Which IPv6 ACE is automatically added implicitly at the end of an ACL so that two adjacent routers can discover each other?

Selecciona una de las siguientes respuestas posibles:

permit ip any any
permit ip any host ip_address
permit icmp any any nd-na
deny ip any any

Explicación

Pregunta 16 de 107

2

Which statement describes a route that has been learned dynamically?

Selecciona una de las siguientes respuestas posibles:

It is automatically updated and maintained by routing protocols.
It is unaffected by changes in the topology of the network.
It has an administrative distance of 1.
It is identified by the prefix C in the routing table.

Explicación

Pregunta 17 de 107

2

Refer to the exhibit. How did the router obtain the last route that is shown?

Selecciona una de las siguientes respuestas posibles:

The ip route command was used.
The ipv6 route command was used.
Another router in the same organization provided the default route by using a dynamic routing protocol.
The ip address interface configuration mode command was used in addition to the network routing protocol configuration mode command.

Explicación

Pregunta 18 de 107

2

Which statement is correct about IPv6 routing?

Selecciona una de las siguientes respuestas posibles:

IPv6 routing is enabled by default on Cisco routers.
IPv6 only supports the OSPF and EIGRP routing protocols.
IPv6 routes appear in the same routing table as IPv4 routes.
IPv6 uses the link-local address of neighbors as the next-hop address for dynamic routes.

Explicación

Pregunta 19 de 107

2

Refer to the exhibit. Which type of route is 172.16.0.0/16?

Selecciona una de las siguientes respuestas posibles:

child route
ultimate route
default route
level 1 parent route

Explicación

Pregunta 20 de 107

2

Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

scalability
ISP selection
speed of convergence
the autonomous system that is used
campus backbone architecture

Explicación

Pregunta 21 de 107

2

Refer to the exhibit. Which type of IPv6 static route is configured in the exhibit?

Selecciona una de las siguientes respuestas posibles:

directly attached static route
recursive static route
fully specified static route
floating static route

Explicación

Pregunta 22 de 107

2

A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network?

Selecciona una de las siguientes respuestas posibles:

ip route 172.16.0.0 255.255.240.0 S0/0/0 200
ip route 172.16.32.0 255.255.224.0 S0/0/0 200
ip route 172.16.0.0 255.255.224.0 S0/0/0 100
ip route 172.16.32.0 255.255.0.0 S0/0/0 100

Explicación

Pregunta 23 de 107

2

Which summary IPv6 static route statement can be configured to summarize only the routes to networks 2001:db8:cafe::/58 through 2001:db8:cafe:c0::/58?

Selecciona una de las siguientes respuestas posibles:

ipv6 route 2001:db8:cafe::/62 S0/0/0
ipv6 route 2001:db8:cafe::/54 S0/0/0
ipv6 route 2001:db8:cafe::/56 S0/0/0
ipv6 route 2001:db8:cafe::/60 S0/0/0

Explicación

Pregunta 24 de 107

2

Refer to the exhibit. If RIPng is enabled, how many hops away does R1 consider the 2001:0DB8:ACAD:1::/64 network to be?

Selecciona una de las siguientes respuestas posibles:

1
2
3
4

Explicación

Pregunta 25 de 107

2

Which statement is true about the difference between OSPFv2 and OSPFv3?

Selecciona una de las siguientes respuestas posibles:

OSPFv3 routers use a different metric than OSPFv2 routers use.
OSPFv3 routers use a 128 bit router ID instead of a 32 bit ID.
OSPFv3 routers do not need to elect a DR on multiaccess segments.
OSPFv3 routers do not need to have matching subnets to form neighbor adjacencies.

Explicación

Pregunta 26 de 107

2

What happens immediately after two OSPF routers have exchanged hello packets and have formed a neighbor adjacency?

Selecciona una de las siguientes respuestas posibles:

They exchange DBD packets in order to advertise parameters such as hello and dead intervals.
They negotiate the election process if they are on a multiaccess network.
They request more information about their databases.
They exchange abbreviated lists of their LSDBs.

Explicación

Pregunta 27 de 107

2

What does the cost of an OSPF link indicate?

Selecciona una de las siguientes respuestas posibles:

A higher cost for an OSPF link indicates a faster path to the destination.
Link cost indicates a proportion of the accumulated value of the route to the destination.
Cost equals bandwidth.
A lower cost indicates a better path to the destination than a higher cost does.

Explicación

Pregunta 28 de 107

3

Which three pieces of information does a link-state routing protocol use initially as link-state information for locally connected links? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

the link router interface IP address and subnet mask
the type of network link
the link next-hop IP address
the link bandwidth
the cost of that link

Explicación

Pregunta 29 de 107

3

Which three requirements are necessary for two OSPFv2 routers to form an adjacency? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

The two routers must include the inter-router link network in an OSPFv2 network command.
The OSPFv2 process is enabled on the interface by entering the ospf process area-id command.
The OSPF hello or dead timers on each router must match.
The OSPFv2 process ID must be the same on each router.
The link interface subnet masks must match.
The link interface on each router must be configured with a link-local address.

Explicación

Pregunta 30 de 107

2

A router needs to be configured to route within OSPF area 0. Which two commands are required to accomplish this? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

RouterA(config)# router ospf 0
RouterA(config)# router ospf 1
RouterA(config-router)# network 192.168.2.0 0.0.0.255 0
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
RouterA(config-router)# network 192.168.2.0 255.255.255.0 0

Explicación

Pregunta 31 de 107

2

What are two features of a link-state routing protocol? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Routers send periodic updates only to neighboring routers.
Routers send triggered updates in response to a change.
Routers create a topology of the network by using information from other routers.
The database information for each router is obtained from the same source.
Paths are chosen based on the lowest number of hops to the designated router.

Explicación

Pregunta 32 de 107

2

Why would an administrator use a network security auditing tool to flood the switch MAC address table with fictitious MAC addresses?

Selecciona una de las siguientes respuestas posibles:

to determine which ports are not correctly configured to prevent MAC address flooding
to determine when the CAM table size needs to be increased in order to prevent overflows
to determine if the switch is forwarding the broadcast traffic correctly
to determine which ports are functioning

Explicación

Pregunta 33 de 107

2

Two employees in the Sales department work different shifts with their laptop computers and share the same Ethernet port in the office. Which set of commands would allow only these two laptops to use the Ethernet port and create violation log entry without shutting down the port if a violation occurs?

Selecciona una de las siguientes respuestas posibles:

switchport mode access
switchport port-security
switchport mode access
switchport port-security
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport port-security violation restrict
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport port-security violation protect

Explicación

Pregunta 34 de 107

2

Which problem is evident if the show ip interface command shows that the interface is down and the line protocol is down?

Selecciona una de las siguientes respuestas posibles:

An encapsulation mismatch has occurred.
A cable has not been attached to the port.
The no shutdown command has not been issued on the interface.
There is an IP address conflict with the configured address on the interface.

Explicación

Pregunta 35 de 107

2

What caused the following error message to appear?01:11:12: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/8, putting Fa0/8 in err-disable state

01:11:12: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0011.a0d4.12a0 on port FastEthernet0/8.

01:11:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to down

01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down

Selecciona una de las siguientes respuestas posibles:

Another switch was connected to this switch port with the wrong cable.
An unauthorized user tried to telnet to the switch through switch port Fa0/8.
NAT was enabled on a router, and a private IP address arrived on switch port Fa0/8.
A host with an invalid IP address was connected to a switch port that was previously unused.
Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.

Explicación

Pregunta 36 de 107

2

While analyzing log files, a network administrator notices reoccurring native VLAN mismatches. What is the effect of these reoccurring errors?

Selecciona una de las siguientes respuestas posibles:

All traffic on the error-occurring trunk port is being misdirected or dropped.
The control and management traffic on the error-occurring trunk port is being misdirected or dropped.
All traffic on the error-occurring trunk port is being switched correctly regardless of the error.
Unexpected traffic on the error-occurring trunk port is being received.

Explicación

Pregunta 37 de 107

3

Which three pairs of trunking modes will establish a functional trunk link between two Cisco switches? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

dynamic desirable – dynamic desirable
dynamic auto – dynamic auto
dynamic desirable – dynamic auto
dynamic desirable – trunk
access – trunk
access – dynamic auto

Explicación

Pregunta 38 de 107

2

What are two ways of turning off DTP on a trunk link between switches? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Change the native VLAN on both ports.
Configure attached switch ports with the dynamic desirable command option.
Configure attached switch ports with the nonegotiate command option.
Configure one port with the dynamic auto command option and the opposite attached switch port with the dynamic desirable command option.
Place the two attached switch ports in access mode.

Explicación

Pregunta 39 de 107

2

A network administrator is using the router-on-a-stick method to configure inter-VLAN routing. Switch port Gi1/1 is used to connect to the router. Which command should be entered to prepare this port for the task?

Selecciona una de las siguientes respuestas posibles:

Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree vlan 1
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree portfast
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport mode trunk
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport access vlan 1

Explicación

Pregunta 40 de 107

2

Which two characteristics describe the native VLAN? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
The native VLAN traffic will be untagged across the trunk link.
This VLAN is necessary for remote management of a switch.
High priority traffic, such as voice traffic, uses the native VLAN.
The native VLAN provides a common identifier to both ends of a trunk.

Explicación

Pregunta 41 de 107

2

On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?

Selecciona una de las siguientes respuestas posibles:

Switch# delete flash:vlan.dat
Switch(config-if)# no switchport access vlan 100
Switch(config-if)# no switchport trunk allowed vlan 100
Switch(config)# no vlan 100

Explicación

Pregunta 42 de 107

2

What is the purpose of setting the native VLAN separate from data VLANs?

Selecciona una de las siguientes respuestas posibles:

The native VLAN is for carrying VLAN management traffic only.
The security of management frames that are carried in the native VLAN can be enhanced.
A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs.
The native VLAN is for routers and switches to exchange their management information, so it should be different from data VLANs.

Explicación

Pregunta 43 de 107

2

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

Selecciona una de las siguientes respuestas posibles:

All devices in all VLANs see the frame.
Devices in VLAN 20 and the management VLAN see the frame.
Only devices in VLAN 20 see the frame.
Only devices that are connected to the local switch see the frame.

Explicación

Pregunta 44 de 107

2

Refer to the exhibit. The partial configuration that is shown was used to configure router on a stick for VLANS 10, 30, and 50. However, testing shows that there are some connectivity problems between the VLANs. Which configuration error is causing this problem?

Selecciona una de las siguientes respuestas posibles:

A configuration for the native VLAN is missing.
There is no IP address configured for the FastEthernet 0/0 interface.
The wrong VLAN has been configured on subinterface Fa0/0.50.
The VLAN IP addresses should belong to the same subnet.

Explicación

Pregunta 45 de 107

2

What is the purpose of an access list that is created as part of configuring IP address translation?

Selecciona una de las siguientes respuestas posibles:

The access list defines the valid public addresses for the NAT or PAT pool.
The access list defines the private IP addresses that are to be translated.
The access list prevents external devices from being a part of the address translation.
The access list permits or denies specific addresses from entering the device doing the translation.

Explicación

Pregunta 46 de 107

2

Which command will create a static route on R2 in order to reach PC B?

Selecciona una de las siguientes respuestas posibles:

R2(config)# ip route 172.16.2.1 255.255.255.0 172.16.3.1
R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.2.254
R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1
R2(config)# ip route 172.16.3.0 255.255.255.0 172.16.2.254

Explicación

Pregunta 47 de 107

2

Rellena el espacio en blanco para completar el texto.

In IPv6, all routes are level ultimate routes.

Explicación

Pregunta 48 de 107

2

Rellena el espacio en blanco para completar el texto.

Static routes are configured by the use of the global configuration command.

Explicación

Pregunta 49 de 107

2

Rellena el espacio en blanco para completar el texto.

The OSPF Type 1 packet is the packet.

Explicación

Pregunta 50 de 107

2

Rellena el espacio en blanco para completar el texto.

The default administrative distance for a static route is .

Explicación

Pregunta 51 de 107

5

Match the order in which the link-state routing process occurs on a router. (Not all options are used.)

❌ Each router is responsible for “saying hello” to its neighbours on directly connected networks
❌ Each router builds a Link-State Packet (LSP) containing the state of each directly connected link
❌ Each router learns about its own directly connected networks
❌ Each router increment the hop count for the destination network
❌ Each router floods the LSP to all neighbours, who then store all LSPs received in a database
❌ Each router uses the database to construct a complete map of the topology and computes the best path to each destination network

Arrastra y suelta para completar el texto.

step 2

step 3

step 1

---------

step 4

step 5

Explicación

Pregunta 52 de 107

2

Which information does a switch use to populate the MAC address table?

Selecciona una de las siguientes respuestas posibles:

the destination MAC address and the incoming port
the destination MAC address and the outgoing port
the source and destination MAC addresses and the incoming port
the source and destination MAC addresses and the outgoing port
the source MAC address and the incoming port
the source MAC address and the outgoing port

Explicación

Pregunta 53 de 107

2

Refer to the exhibit. How many broadcast and collision domains exist in the topology?

Selecciona una de las siguientes respuestas posibles:

10 broadcast domains and 5 collision domains
5 broadcast domains and 10 collision domains
5 broadcast domains and 11 collision domains
16 broadcast domains and 11 collision domains

Explicación

Pregunta 54 de 107

2

What is a function of the distribution layer?

Selecciona una de las siguientes respuestas posibles:

fault isolation
network access to the user
high-speed backbone connectivity
interconnection of large-scale networks in wiring closets

Explicación

Pregunta 55 de 107

2

Which switching method drops frames that fail the FCS check?

Selecciona una de las siguientes respuestas posibles:

borderless switching
cut-through switching
ingress port buffering
store-and-forward switching

Explicación

Pregunta 56 de 107

1

When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default?

Selecciona una de las siguientes respuestas posibles:

data VLAN ID
native VLAN ID
unused VLAN ID
management VLAN ID

Explicación

Pregunta 57 de 107

1

Which statement describes a route that has been learned dynamically?

Selecciona una de las siguientes respuestas posibles:

It is automatically updated and maintained by routing protocols.
It is unaffected by changes in the topology of the network.
It has an administrative distance of 1.
It is identified by the prefix C in the routing table.

Explicación

Pregunta 58 de 107

1

Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224 255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach resources on the Internet. How should this static route be changed to allow user traffic from the LAN to reach the Internet?

Selecciona una de las siguientes respuestas posibles:

Add an administrative distance of 254.
Change the destination network and mask to 0.0.0.0 0.0.0.0
Change the exit interface to S0/0/1.
Add the next-hop neighbor address of 209.165.200.226.

Explicación

Pregunta 59 de 107

1

Refer to the exhibit. A Layer 3 switch routes for three VLANs and connects to a router for Internet connectivity. Which two configurations would be applied to the
switch? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

(config)# interface gigabitethernet 1/1
(config-if)# no switchport
(config-if)# ip address 192.168.1.2 255.255.255.252
(config)# interface vlan 1
(config-if)# ip address 192.168.1.2 255.255.255.0
(config-if)# no shutdown
(config)# interface gigabitethernet1/1
(config-if)# switchport mode trunk
(config)# interface fastethernet0/4
(config-if)# switchport mode trunk
(config)# ip routing

Explicación

Pregunta 60 de 107

1

How is the router ID for an OSPFv3 router determined?

Selecciona una de las siguientes respuestas posibles:

the highest IPv6 address on an active interface
the highest EUI-64 ID on an active interface
the highest IPv4 address on an active interface
the lowest MAC address on an active interface

Explicación

Pregunta 61 de 107

1

Which two statements are characteristics of routed ports on a multilayer switch? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

In a switched network, they are mostly configured between switches at the core and distribution layers.
They support subinterfaces, like interfaces on the Cisco IOS routers.
The interface vlan command has to be entered to create a VLAN on routed ports.
They are used for point-to-multipoint links.
They are not associated with a particular VLAN.

Explicación

Pregunta 62 de 107

1

Match the switching characteristic to the correct term. (Not all options are used.)

This is the ability to store frames before forwarding them. ❌
Each switch port can simultaneously send and receive data. ❌
Each switch port creates this by reducing the possibility of collisions. ❌
Switches use this to forward frames to the destination. ❌

Arrastra y suelta para completar el texto.

buffering

broadcast domain

half duplex

switching database

full duplex

collision domain

MAC address table

Explicación

Pregunta 63 de 107

1

A small-sized company has 20 workstations and 2 servers. The company has been assigned a group of IPv4 addresses 209.165.200.224/29 from its ISP. What technology should the company implement in order to allow the workstations to access the services over the Internet?

Selecciona una de las siguientes respuestas posibles:

static NAT
dynamic NAT
port address translation
DHCP

Explicación

Pregunta 64 de 107

1

What best describes the operation of distance vector routing protocols?

Selecciona una de las siguientes respuestas posibles:

They use hop count as their only metric.
They send their routing tables to directly connected neighbors.
They flood the entire network with routing updates.
They only send out updates when a new network is added.

Explicación

Pregunta 65 de 107

1

Which three advantages are provided by static routing? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

The path a static route uses to send data is known.
No intervention is required to maintain changing route information.
Static routing typically uses less network bandwidth and fewer CPU operations than dynamic routing does.
Configuration of static routes is error-free.
Static routes scale well as the network grows.
Static routing does not advertise over the network, thus providing better security.

Explicación

Pregunta 66 de 107

1

When configuring a switch to use SSH for virtual terminal connections, what is the purpose of the crypto key generate rsa command?

Selecciona una de las siguientes respuestas posibles:

show active SSH ports on the switch
disconnect SSH connected hosts
create a public and private key pair
show SSH connected hosts
access the SSH database configuration

Explicación

Pregunta 67 de 107

1

Which two commands can be used to verify the content and placement of access control lists? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

show processes
show cdp neighbor
show access-lists
show ip route
show running-config

Explicación

Pregunta 68 de 107

1

Refer to the exhibit. What summary static address would be configured on R1 to advertise to R3?

Selecciona una de las siguientes respuestas posibles:

192.168.0.0/24
192.168.0.0/23
192.168.0.0/22
192.168.0.0/21

Explicación

Pregunta 69 de 107

1

A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements?

Selecciona una de las siguientes respuestas posibles:

auto secure MAC addresses
dynamic secure MAC addresses
static secure MAC addresses
sticky secure MAC addresses

Explicación

Pregunta 70 de 107

1

Which value represents the “trustworthiness” of a route and is used to determine which route to install into the routing table when there are multiple routes toward the same destination?

Selecciona una de las siguientes respuestas posibles:

routing protocol
outgoing interface
metric
administrative distance

Explicación

Pregunta 71 de 107

1

Which type of router memory temporarily stores the running configuration file and ARP table?

Selecciona una de las siguientes respuestas posibles:

flash
NVRAM
RAM
ROM

Explicación

Pregunta 72 de 107

1

What is the purpose of an access list that is created as part of configuring IP address translation?

Selecciona una de las siguientes respuestas posibles:

The access list permits or denies specific addresses from entering the device doing the translation.
The access list defines the private IP addresses that are to be translated.
The access list prevents external devices from being a part of the address translation.
The access list defines the valid public addresses for the NAT or PAT pool.

Explicación

Pregunta 73 de 107

1

A new network policy requires an ACL to deny HTTP access from all guests to a web server at the main office. All guests use addressing from the IPv6 subnet 2001:DB8:19:C::/64. The web server is configured with the address 2001:DB8:19:A::105/64. Implementing the NoWeb ACL on the interface for the guest LAN requires which three commands? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

permit tcp any host 2001:DB8:19:A::105 eq 80
deny tcp host 2001:DB8:19:A::105 any eq 80
deny tcp any host 2001:DB8:19:A::105 eq 80
permit ipv6 any any
deny ipv6 any any
ipv6 traffic-filter NoWeb in
ip access-group NoWeb in

Explicación

Pregunta 74 de 107

1

An OSPF router has three directly connected networks; 172.16.0.0/16, 172.16.1.0/16, and 172.16.2.0/16. Which OSPF network command would advertise only the 172.16.1.0 network to neighbors?

Selecciona una de las siguientes respuestas posibles:

router(config-router)# network 172.16.1.0 0.0.255.255 area 0
router(config-router)# network 172.16.0.0 0.0.15.255 area 0
router(config-router)# network 172.16.1.0 255.255.255.0 area 0
router(config-router)# network 172.16.1.0 0.0.0.0 area 0

Explicación

Pregunta 75 de 107

1

Refer to the exhibit. A small business uses VLANs 8, 20, 25, and 30 on two switches that have a trunk link between them. What native VLAN should be used on the trunk if Cisco best practices are being implemented?

Selecciona una de las siguientes respuestas posibles:

1
5
8
20
25
30

Explicación

Pregunta 76 de 107

1

A network technician is configuring port security on switches. The interfaces on the switches are configured in such a way that when a violation occurs, packets with unknown source address are dropped and no notification is sent. Which violation mode is configured on the interfaces?

Selecciona una de las siguientes respuestas posibles:

off
restrict
protect
shutdown

Explicación

Pregunta 77 de 107

1

Which subnet mask would be used as the classful mask for the IP address 192.135.250.27?

Selecciona una de las siguientes respuestas posibles:

255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.224

Explicación

Pregunta 78 de 107

1

Which subnet mask would be used as the classful mask for the IP address 128.107.52.27?

Selecciona una de las siguientes respuestas posibles:

255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.224

Explicación

Pregunta 79 de 107

1

A standard ACL has been configured on a router to allow only clients from the 10.11.110.0/24 network to telnet or to ssh to the VTY lines of the router. Which command will correctly apply this ACL?

Selecciona una de las siguientes respuestas posibles:

access-group 11 in
access-class 11 in
access-list 11 in
access-list 110 in

Explicación

Pregunta 80 de 107

1

A security specialist designs an ACL to deny access to a web server from all sales staff. The sales staff are assigned addressing from the IPv6 subnet 2001:db8:48:2c::/64. The web server is assigned the address 2001:db8:48:1c::50/64. Configuring the WebFilter ACL on the LAN interface for the sales staff will require which three commands? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

permit tcp any host 2001:db8:48:1c::50 eq 80
deny tcp host 2001:db8:48:1c::50 any eq 80
deny tcp any host 2001:db8:48:1c::50 eq 80
permit ipv6 any any
deny ipv6 any any
ip access-group WebFilter in
ipv6 traffic-filter WebFilter in

Explicación

Pregunta 81 de 107

1

To enable RIP routing for a specific subnet, the configuration command network 192.168.5.64 was entered by the network administrator. What address, if any, appears in the running configuration file to identify this network?

Selecciona una de las siguientes respuestas posibles:

192.168.5.64
192.168.5.0
192.168.0.0
No address is displayed.

Explicación

Pregunta 82 de 107

1

What is the minimum configuration for a router interface that is participating in IPv6 routing?

Selecciona una de las siguientes respuestas posibles:

Ipv6
Link-access
To have only a link-local IPv6 address
Protocol
OSPF

Explicación

Pregunta 83 de 107

1

Which two statements are true about half-duplex and full-duplex communications? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Full duplex offers 100 percent potential use of the bandwidth.
Half duplex has only one channel.
All modern NICs support both half-duplex and full-duplex communication.
Full duplex allows both ends to transmit and receive simultaneously.
Full duplex increases the effective bandwidth.

Explicación

Pregunta 84 de 107

1

Rellena el espacio en blanco para completar el texto.

The acronym describes the type of traffic that has strict QoS requirements and utilizes a one-way overall delay less than 150 ms across the network.

Explicación

Pregunta 85 de 107

1

Which two commands should be implemented to return a Cisco 3560 trunk port to its default configuration? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

S1(config-if)# no switchport trunk allowed vlan
S1(config-if)# no switchport trunk native vlan
S1(config-if)# switchport mode dynamic desirable
S1(config-if)# switchport mode access
S1(config-if)# switchport access vlan 1

Explicación

Pregunta 86 de 107

1

Which command will enable auto-MDIX on a device?

Selecciona una de las siguientes respuestas posibles:

S1(config-if)# mdix auto
S1# auto-mdix
S1(config-if)# auto-mdix
S1# mdix auto
S1(config)# mdix auto
S1(config)# auto-mdix

Explicación

Pregunta 87 de 107

1

What is the effect of issuing the passive-interface default command on a router that is configured for OSPF?

Selecciona una de las siguientes respuestas posibles:

Routers that share a link and use the same routing protocol
It prevents OSPF messages from being sent out any OSPF-enabled interface.
All of above

Explicación

Pregunta 88 de 107

1

A network administrator is implementing a distance vector routing protocol between neighbors on the network. In the context of distance vector protocols, what is a neighbor?

Selecciona una de las siguientes respuestas posibles:

routers that are reachable over a TCP session
routers that share a link and use the same routing protocol
routers that reside in the same area
routers that exchange LSAs

Explicación

Pregunta 89 de 107

1

Refer to the exhibit. A network administrator has just configured address translation and is verifying the configuration. What three things can the administrator verify? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

Address translation is working.
Three addresses from the NAT pool are being used by hosts.
The name of the NAT pool is refCount.
A standard access list numbered 1 was used as part of the configuration process.
Two types of NAT are enabled.
One port on the router is not participating in the address translation.

Explicación

Pregunta 90 de 107

1

Match the router memory type that provides the primary storage for the router feature. (Not all options are used.)

console access ❌

full operating system ❌

limited operating system ❌

routing table ❌

startup configuration file ❌

Arrastra y suelta para completar el texto.

–--

flash

ROM

RAM

NVRAM

Explicación

Pregunta 91 de 107

1

Which two methods can be used to provide secure management access to a Cisco switch? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Configure all switch ports to a new VLAN that is not VLAN 1.
Configure specific ports for management traffic on a specific VLAN.
Configure SSH for remote management.
Configure all unused ports to a “black hole.”
Configure the native VLAN to match the default VLAN.

Explicación

Pregunta 92 de 107

1

Refer to the exhibit. Which highlighted value represents a specific destination network in the routing table?

Selecciona una de las siguientes respuestas posibles:

0.0.0.0
10.16.100.128
10.16.100.2
110
791

Explicación

Pregunta 93 de 107

1

Refer to the exhibit. Host A has sent a packet to host B. What will be the source MAC and IP addresses on the packet when it arrives at host B?

Selecciona una de las siguientes respuestas posibles:

Source MAC: 00E0.FE10.17A3
Source IP: 10.1.1.10
Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.1
Source MAC: 00E0.FE91.7799
Source IP: 192.168.1.1
Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.10
Source MAC: 00E0.FE10.17A3
Source IP: 192.168.1.1

Explicación

Pregunta 94 de 107

1

Which network design may be recommended for a small campus site that consists of a single building with a few users?

Selecciona una de las siguientes respuestas posibles:

a network design where the access and distribution layers are collapsed into a single layer
a network design where the access and core layers are collapsed into a single layer
a collapsed core network design
a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions

Explicación

Pregunta 95 de 107

1

The network address 172.18.9.128 with netmask 255.255.255.128 is matched by which wildcard mask?

Selecciona una de las siguientes respuestas posibles:

0.0.0.31
0.0.0.255
0.0.0.127
0.0.0.63

Explicación

Pregunta 96 de 107

1

Which three addresses could be used as the destination address for OSPFv3 messages? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

FF02::5
FF02::6
FF02::A
2001:db8:cafe::1
FF02::1:2
FE80::1

Explicación

Pregunta 97 de 107

1

A network administrator is configuring port security on a Cisco switch. The company security policy specifies that when a violation occurs, packets with unknown source addresses should be dropped and no notification should be sent. Which violation mode should be configured on the interfaces?

Selecciona una de las siguientes respuestas posibles:

off
restrict
protect
shutdown

Explicación

Pregunta 98 de 107

1

A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address matches the ACE?

Selecciona una de las siguientes respuestas posibles:

172.16.20.2
172.16.26.254
172.16.47.254
172.16.48.5

Explicación

Pregunta 99 de 107

1

What are two reasons that will prevent two routers from forming an OSPFv2 adjacency? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

a mismatched Cisco IOS version that is used
use of private IP addresses on the link interfaces
one router connecting to a FastEthernet port on the switch and the other connecting to a GigabitEthernet port
mismatched OSPF Hello or Dead timers
mismatched subnet masks on the link interfaces

Explicación

Pregunta 100 de 107

1

A part of the new security policy, all switches on the network are configured to automatically learn MAC addresses for each port. All running configurations are saved at the start and close of every business day. A severe thunderstorm causes an extended power outage several hours after the close of business. When the switches are brought back online, the dynamically learned MAC addresses are retained. Which port security configuration enabled this?

Selecciona una de las siguientes respuestas posibles:

auto secure MAC addresses
dynamic secure MAC addresses
static secure MAC addresses
sticky secure MAC addresses

Explicación

Pregunta 101 de 107

1

Which type of traffic is designed for a native VLAN?

Selecciona una de las siguientes respuestas posibles:

management
user-generated
untagged
tagged

Explicación

Pregunta 102 de 107

1

Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number?

Selecciona una o más de las siguientes respuestas posibles:

The NTP master will claim to be synchronized at the configured stratum number.
An NTP server with a higher stratum number will become the master.
Other systems will be willing to synchronize to that master using NTP.
The NTP master will be the clock with 1 as its stratum number.
The NTP master will lower its stratum number.

Explicación

Pregunta 103 de 107

1

A network engineer has created a standard ACL to control SSH access to a router. Which command will apply the ACL to the VTY lines?

Selecciona una de las siguientes respuestas posibles:

access-group 11 in
access-class 11 in
access-list 11 in
access-list 110 in

Explicación

Pregunta 104 de 107

1

A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

vty lines
VTP domain
loopback address
default gateway
default VLAN
IP address

Explicación

Pregunta 105 de 107

1

A network administrator configures a router to provide stateful DHCPv6 operation. However, users report that workstations do not receive IPv6 addresses within the scope. Which configuration command should be checked to ensure that statefull DHCPv6 is implemented?

Selecciona una de las siguientes respuestas posibles:

The dns-server line is included in the ipv6 dhcp pool section.
The ipv6 nd managed-config-flag is entered for the interface facing the LAN segment.
The ipv6 nd other-config-flag is entered for the interface facing the LAN segment.
The domain-name line is included in the ipv6 dhcp pool section.

Explicación

Pregunta 106 de 107

1

Refer to the exhibit. A company has an internal network of 172.16.25.0/24 for their employee workstations and a DMZ network of 172.16.12.0/24 to host servers. The company uses NAT when inside hosts connect to outside network. A network administrator issues the show ip nat translations command to check the NAT configurations. Which one of source IPv4 addresses is translated by R1 with PAT?

Selecciona una de las siguientes respuestas posibles:

10.0.0.31
172.16.12.5
172.16.12.33
192.168.1.10
172.16.25.35

	Creado por Jess K hace más de 7 años

	Copiado por Jess K hace más de 7 años

Final exam (CCNA2) Information Technology Test sobre CCNA2 Final Exam, creado por Jess K el 13/01/2017.

CCNA2 Final Exam

Pregunta 1 de 107

Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 107

Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 107

Which kind of message is sent by a DHCP client when its IP address lease has expired?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 107

Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4 address. What is the problem?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 107

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 107

What is a disadvantage of NAT?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 107

Which type of traffic would most likely have problems when passing through a NAT device?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 107

What benefit does NAT64 provide?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 107

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 107

Which two packet filters could a network administrator use on an IPv4 extended ACL? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 107

A network administrator is explaining to a junior colleague the use of the lt and gt keywords when filtering packets using an extended ACL. Where would the lt or gt keywords be used?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 107

Which three values or sets of values are included when creating an extended access control list entry? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 107

A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 107

The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 107

A network administrator is adding ACLs to a new IPv6 multirouter environment. Which IPv6 ACE is automatically added implicitly at the end of an ACL so that two adjacent routers can discover each other?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 107

Which statement describes a route that has been learned dynamically?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 107

Refer to the exhibit. How did the router obtain the last route that is shown?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 107

Which statement is correct about IPv6 routing?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 107

Refer to the exhibit. Which type of route is 172.16.0.0/16?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 107

Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

Explicación