4A0-112 by Nokia Actual Free Exam Questions And Answers

Question 1

A new router is added to a broadcast network. What does IS-IS use as the tiebreaker for selecting the DIS if the priorities are the same?

A. The Hello packet with the highest sequence number.

B. The router with the highest system ID.

C. The router with the highest interface MAC address.

D. The existing DIS remains the DIS.

Discussion 0

Correct Answer: B Vote an answer

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Question 2

On a broadcast interface, an IS-IS router receives an LSP that is newer than the one on its database. Which of the following statements best describes the actions taken by the router as a consequence?

A. The router sends back a copy of the LSP from its database to its neighbor.

B. The router updates its database with the LSP and acknowledges it with a PSNP.

C. The router updated its database with the LSP, acknowledges the LSP with a PSNP, and floods a copy to its neighbors on other interfaces.

D. The router updates its database with the LSP and floods a copy to its neighbors on other interfaces.

Discussion 0

Correct Answer: C Vote an answer

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Question 3

Refer to the exhibit.

Routers R1 through R4 are running an IGP in such a way that they have each other's system IP addresses in their routing tables. A static route is configured on router R1 so that it can reach subnetwork 10.4.100.0/24. The network administrator decides to use an indirect static route, as shown in the diagram. However, pinging the server from router R1 fails. What may be the problem in this case?

A. Router R2 drops the echo request because it does not have subnet 10.4.100.0/24 in its routing table.

B. Router R3 drops the echo request because it does not have subnet 10.4.100.0/24 in its routing table.

C. The echo request arrives at the server but there is no path for the echo response to return to router R1.

D. Router R1 drops the echo request because address 10.10.10.3 does not belong to an adjacent router.

Discussion 0

Correct Answer: C Vote an answer

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Question 4

Refer to the exhibit.

A static route has been configured on router R1 to reach the PC at 139.120.121.2.
What might be causing the ping to fail?

A. Router R2 needs a static route to the PC.

B. The configured next hop does not belong to a subnet adjacent to R1.

C. Router R1 needs a static route to router R2.

D. The configured static route needs to be a default route.

Discussion 0

Correct Answer: B Vote an answer

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Question 5

Which of the following is NOT a required configuration step to successfully run IS-IS on a router?

A. A reference bandwidth needs to be configured to calculate link costs.

B. Layer-3 interfaces that will participate in IS-IS need to be identified.

C. The router needs to be associated with an IS-IS area ID.

D. The IS-IS context needs to be enabled.

Discussion 0

Correct Answer: A Vote an answer

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Nokia IS-IS Routing Protocol - 4A0-112 Exam Practice Test

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