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4A0-112 Exam Questions

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4A0-112 Exam Questions

Free 4A0-112 Exam Questions - Nokia 4A0-112 Exam

Nokia 4A0-112 Exam

Nokia IS-IS Routing Protocol

Total Questions: 40

Last Updated : 18-02-2025

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Nokia 4A0-112 Exam Sample Questions:

Q1.

Two IS-IS routers are exchanging Hello packets. One is configured to use authentication and the other is not. Which of the following statements is TRUE?

AAn adjacency will be established with authentication using the default parameters defined for IS-IS routers.

BThe two routers will negotiate the authentication parameters and the establish an adjacency.

CAn adjacency will be established without authentication.

DAn adjacency will not be established.

Q2.

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

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

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

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

DThe IS-IS context needs to be enabled.

Q3.

A routing domain uses a link-state routing protocol. Which of the following would NOT be an advantage of dividing the entire routing domain into areas?

ADetailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.

BRoute tables can be reduced by summarizing the IP prefixes advertised between areas.

CLess-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.

DFewer routers are required to handle the same amount of traffic, as compared to a single-area domain.

Q4.

Refer to the exhibit.

q4_4A0-112

Routers R1, R2, R3, and R4 are running IS-IS. Assuming all interfaces are added to IS-IS as point-to-point and no commands are issued at the interface level to restrict adjacencies, which of the following statements is TRUE?

ARouters R1 and R2 are L2 routers. Routers R3 and R4 are L1 routers.

BRouters R1 and R2 are L2 routers. Routers R3 and R4 are L1/L2 routers.

CRouters R1 and R2 are L1/L2 routers. Routers R3 and R4 are L1 routers.

DAll four routers are L1/L2.

Q5.

A router running a link-state routing protocol detects that one of its neighbors is no longer connected to it. The router generates a new link-state advertisement to inform other routers of the topology change. Which of the following is NOT an action that is triggered by this event?

AIf a router receives the new link-state advertisement, it acknowledges it, stores it, and forwards it to its own neighbors.

BIf a router receives multiple copies of the new link-state advertisement, it will simply ignore all copies received after the first one.

CEvery router that receives the new link-state advertisement updates its age field before forwarding it.

DEvery router that receives the new link-state advertisement runs the SPF algorithm to recalculate its shortest-path tree and its forwarding database.

Solutions:

Question: 1 Answer: D

Question: 2 Answer: C

Question: 3 Answer: D

Question: 4 Answer: C

Question: 5 Answer: C