Nokia IS-IS Routing Protocol (4A0-112) Free Practice Test

Question 1

Which component of the Nokia 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

A. Media Dependent Adapter (MDA)

B. Switch Fabric (SF)

C. Input/Output Module (IOM)

D. Control Processing Module (CMP)

Correct Answer: C

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Question 2

An IS-IS router receives a CSNP that references an older LSP than the one in its local database. What action is taken?

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

B. The router sends a PSNP to its neighbor to request a copy of the LSP.

C. The router updates its database with the new sequence number and floods a copy of the LSP to its other neighbors.

D. The router sends a CSNP to its neighbor describing the newer LSPs in its database.

Correct Answer: A

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Question 3

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

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

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

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

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

Correct Answer: C

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Question 4

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

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

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

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

Correct Answer: A

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Question 5

Refer to the exhibit.

Static routing is to be used in a network between a corporate head office and a branch office. The head office has many connected subnetworks, whereas the branch office has one subnetwork and a single connection to the head office. Which of the following is the most likely configuration on the head office and branch office routers?

A. The head office and the branch office both have default routes.

B. The head office and the branch offices both have specific static routes.

C. The head office has a default route and the branch office has a specific static route.

D. The head office has a specific static route and the branch office has a default route.

Correct Answer: C

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Nokia IS-IS Routing Protocol (4A0-112) Free Practice Test