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CCNA 2 Chapter 10 V4.0 Answers


1. What action does a link-state router take immediately upon receipt of an LSP from a
neighboring router?

floods the LSP to neighbors

calculates the SPF algorithm

runs the Bellman-Ford algorithm

computes the best path to the destination network



2. Why is it difficult for routing loops to occur in networks that use link-state routing?

Each router builds a simple view of the network based on hop count.

Routers flood the network with LSAs to discover routing loops.

Each router builds a complete and synchronized view of the network.

Routers use hold-down timers to prevent routing loops.

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CCNA 2 Chapter 9 V4.0 Answers
1. What two actions will the EIGRP DUAL FSM take if a link to a network goes down?
(Choose two.)

put the route into passive mode

query neighbors for a new route

search routing table for a feasible successor

run the SPF algorithm to find a new successor

search topology table for a feasible successor

2.
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Host 192.168.1.66 in the network illustrated is unable to ping host 192.168.1.130. How
must EIGRP be configured to enable connectivity between the two hosts? (Choose two.)

R1(config-router)# network 192.168.1.128

R1(config-router)# auto-summary

R1(config-router)# no auto-summary

R2(config-router)# no auto-summary

R2(config-router)# auto-summary

R2(config-router)# network 192.168.1.64

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CCNA 2 Chapter 8 V4.0 Answers
1.




Refer to the exhibit. Router B receives a packet with a destination address of 10.16.1.97.
What will router B do?

drop the packet
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forward the packet via the route to 10.16.1.0

forward the packet via the route to 10.16.1.64

use the default route

2. A network is converged and the routing tables are complete. When a packet needs to
be forwarded, what is the first criterion used to determine the best path in the routing
table?

the route with the smallest AD

the route with the longest address and mask match to the destination

the route with the highest bandwidth

the route with the best combination of AD and lowest cost

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CCNA 2 Chapter 7 V4.0 Answers
1. A network administrator has been told that the company IP address infrastructure must
adhere to RFC 1918. What three IP address ranges from RFC 1918 could the
administrator use on the network? (Choose three.)

10.0.0.0/8

127.0.0.0/8

169.254.0.0/16

172.16.0.0/12

192.168.0.0/16

209.165.201.0/27

2.
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Refer to the exhibit. Routers East and West are configured using RIPv1. Both routers are
sending updates about their directly connected routes. The East router can ping the West
router serial interface and West can ping the serial interface of East. However, neither
router has dynamically learned routes from the other. What is most likely the problem?

A gateway of last resort is required.

Subnetting is not supported by RIPv1.

VLSM is not supported by RIPv1.

One of the routers needs a clock rate on the serial interface.

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CCNA 2 Chapter 6 V4.0 Answers
1. What two advantages does CIDR provide to a network? (Choose two.)

reduced routing table size

dynamic address assignment

automatic route redistribution

reduced routing update traffic

automatic summarization at classful boundaries
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2.




Refer to the exhibit. Which address is a broadcast address for one of the subnets that are
shown in the exhibit?

192.168.4.3/29

192.168.4.15/29

192.168.4.65/26

192.168.4.255/24

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CCNA 2 Chapter 5 V4.0 Answers
1.




Refer to the exhibit. The network that is shown is running RIPv1. The 192.168.10.0/24
network was recently added and will only contain end users. What command or set of
commands should be entered on Router1 to prevent RIPv1 updates from being sent to the
end user devices on the new network while still allowing this new network to be
advertised to other routers?

Router1(config-router)# no router rip Router1(config-router)# network 192.168.10.0
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Router1(config-router)# no network 192.168.10.0

Router1(config-router)# passive-interface fastethernet 0/0

Router1(config-router)# passive-interface serial 0/0/0

2.




Refer to the output from the show ip route command. What can be concluded from the
output of this router command?

A preferred route to the destination has not been set.

There are two equal cost paths to network 1.0.0.0.

Both interfaces are being used equally to route traffic.

A variance must be set to load-balance across multiple paths.

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