Final CCNA 2 (L)

1. What are two functions of a router? (Choose two.)

xxxIt connects multiple IP networks.
It controls the flow of data via the use of Layer 2 addresses.
xxxIt determines the best path to send packets.
It manages the VLAN database.
It increases the size of the broadcast domain

2. When a router boots, what is the default order to locate the Cisco IOS if there is no boot system command?

ROM, TFTP server, flash
xxxflash, TFTP server, ROM
flash, NVRAM, TFTP server
NVRAM, TFTP server, flash

Final CCNA 2 (K)

1. Which of the following are primary functions of a router? (Choose two.)
ans:
packet switching
path selection

2. Refer to the exhibit. Pings are failing between HostA and HostB. The network administrator discovers that Router1 does not have a route to the 172.16.0.0 network. Assuming Router2 is configured correctly, which two static routes could be configured on Router1 to enable Host A to reach network 172.16.0.0? (Choose two.)
ans:
ip route 172.16.0.0 255.255.0.0 S0/0
ip route 172.16.0.0 255.255.0.0 192.168.0.2

Final CCNA 2 (J)

1. Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true?
ans:
The link to the ISP is not advertised by the routing protocol process.

2. Refer to the exhibit. While trying to diagnose a routing problem in the network, the network administrator runs the debug ip rip command. What can be determined from the output of this command?
ans:
The router will be unable to ping 192.168.1.2.

Final CCNA 2 ( I )

1. Refer to the exhibit. What two statements are true based on the output shown? (Choose two.)

- neighbors 192.168.10.9 and 192.168.10.5 have auto summary disabled
- router 3 is load balancing traffic to the 172.16.3.0 network across its serial interfaces

2. Refer to the exhibit. The network administrator issues the command no ip classless on Router1. What forwarding action will take place on a packet that is received by Router1 and is destined for host 192.168.0.26?

- The packet will be dropped.

Final CCNA 2 ( H )

1. Refer to the exhibit. The output of the show ip route command for three routers on a network is displayed. All routers are operational, pings are not blocked on this network, and no default routes are installed. Which two pings will fail? (Choose two.)
from R1 to 172.16.1.1
** from R1 to 192.168.3.1
from R2 to 192.168.1.1
from R2 to 192.168.3.1
** from R3 to 192.168.1.1
172.16.4.0/24


2. A router that uses the RIP routing protocol has an entry for a network in the routing table. It then receives an update with another entry for the same destination network but with a lower hop count. What action will the router take for this new update?
** It will append the update information to the routing table.
It will invalidate the entry for that network in the routing table.
It will replace the existing routing table entry with the new information.
It will ignore the new update.

Final CCNA 2 ( G )

1. Refer to the exhibit. The network administrator issues the command no ip classless on Router1. What forwarding action will take place on a packet that is received by Router1 and is destined for host 192.168.0.26?
•xx The packet will be dropped
• The packet will be forwarded to the gateway of last resort.
• The packet will match the 192.168.0.0 network and be forwarded out Serial 0/0.
• The packet will most closely match the 192.168.0.8 subnet and be forwarded out Serial 0/1.

2. Which three statements are true of holddown timers? (Choose three.)
• used by link state routing protocols to prevent routing loops
•xx prevent update messages from reinstating a route that may have gone bad
•xx allow routers to still forward packets to destination networks that are in holddown
• limit the number of hops a packet can traverse through the network before it is discarded
• prevent a router advertising a network through the same interface from which the network was learned
•xx permit lower metric updates received from any neighboring router to reinstate the route to a possibly down Network

Final CCNA 2 ( F )

1. Refer to the exhibit. The output of the show ip route command for three routers on a network is displayed. All routers are operational, pings are not blocked on this network, and no default routes are installed. Which two pings will fail? (Choose two.)
• from R1 to 172.16.1.1
• xxfrom R1 to 192.168.3.1
• from R2 to 192.168.1.1
• from R2 to 192.168.3.1
• xxfrom R3 to 192.168.1.1

2. A router that uses the RIP routing protocol has an entry for a network in the routing table. It then receives an update with another entry for the same destination network but with a lower hop count. What action will the router take for this new update?
• xxIt will append the update information to the routing table.
• It will invalidate the entry for that network in the routing table.
• It will replace the existing routing table entry with the new information.
• It will ignore the new update.

3. Which two statements are true for OSPF Hello packets? (Choose two.)
• They negotiate correct parameters among neighboring interfaces.
• They are used for dynamic neighbor discovery.
• They use timers to elect the designated router with the fastest link.
• xxThey are received from all routers on the network and used to determine the complete network topology.
• xxThey are used to maintain neighbor relationships.

Final CCNA 2 ( E )

1. Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true?
-The link to the ISP is not advertised by the routing protocol process.

2. Refer to the exhibit. While trying to diagnose a routing problem in the network, the network administrator runs the debug ip rip command. What can be determined from the output of this command?
The router will be unable to ping 192.168.1.2.

3. Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?
The hello and dead intervals are different on the two routers.

Final CCNA 2 ( D )

1. Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best match in the routing table that is shown?
The packet is discarded. XXX
The packet is flooded out all interfaces.
The packet is forwarded via Serial0/0/0.
The packet is forwarded via FastEthernet0/0.

2. Refer to the exhibit. OSPF is used for the routing protocol and all interfaces are configured with the correct IP addresses and subnet masks. During testing, it is found that router R1 is unable to form an adjacency with R2. What is the cause of this problem?
Both routers have been configured with incorrect router IDs.
Both routers have been configured in different OSPF areas.
Both routers have been configured with an incorrect network type.
Both routers have been configured with different hello and dead intervals. XXX

Final CCNA 2 ( C )

1. Which routing protocol maintains a topology table separate from the routing table?
IGRP
RIPv1
RIPv2
*EIGRP

2.Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable to access each
other. What can be the cause of this problem?
Because RIPv1 is a classless protocol, it does not support this access.
*RIPv1 does not support discontiguous networks.
RIPv1 does not support load balancing.
RIPv1 does not support automatic summarization.

Final CCNA 2 ( B )

1. Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
***The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
***The router maintains the same source and destination IP.
***The router changes the source physical address to the physical address of the exit interface.
The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.

2. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
***10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
***192.168.2.0/24

Final CCNA 2 ( A )

1. Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
***The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
***The router maintains the same source and destination IP.
***The router changes the source physical address to the physical address of the exit interface.
The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.

2. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
***10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
***192.168.2.0/24