Nokia 4A0-116 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 4A0-116
Exam Name/Title: Nokia Segment Routing Exam
Certification Provider: Nokia
Corresponding Certification: Nokia Service Routing Architect

Exam Questions: 42
Updated On: May 31, 2026

Question #11

For any of the LFA methods to work properly, there must be a router in the backup path that will forward traffic addressed to the destination without sending it back to the source. Which of the following statements describes the way R-LFA selects such a router?

A. It selects a remote router, reachable through a tunnel defined by a single Node-SID.

B. It selects a remote router, reachable through a tunnel defined by a Node-SID and one or two Adjacency-SIDs.

C. It can select an immediate neighbor or a remote router, as long as the backup path coincides with the path that will become active after IGP reconvergence.

D. It selects an immediate neighbor.

Discussion 0

Correct Answer: C Vote an answer

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Question #12

Which of the following types of information is considered by a stateless PCE when it processes a new LSP path calculation request?

A. The amount of bandwidth reserved for each of the existing LSP paths

B. The traffic-engineering database

C. The IGP link-state database

D. The operational state of existing LSP paths

Discussion 0

Correct Answer: C Vote an answer

Question #13

The exhibit presents packets being transmitted inside an LSP's multi-segment primary path going from router R1 to router R8. The LSP also has a standby secondary path, and Seamless-BFD has been enabled on the primary path. The link between routers R1 and R2 fails, and fast re-route (FRR) is triggered. As a result, router R1 forwards the packets to router R3 and adds the proper FRR encapsulation to reach which router?

A. To reach router R2, which is the LSP's intended next-hop.

B. To reach router R5, which is the shortest way to go back to the original path.

C. To reach router R8, which is the tail-end of the LSP.

D. To reach router R4, which is the tail-end of the active segment.

Discussion 0

Correct Answer: B Vote an answer

Question #14

Which of the following statements about primary and secondary SR-TE LSP paths is FALSE?

A. Preference values can be configured for non-standby secondary paths.

B. Only one LSP path forwards the traffic at any time,

C. Up to three paths can be configured for a given SR-TE LS

D. The primary path is always preferred over a secondary pa

Discussion 0

Correct Answer: C Vote an answer

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Question #15

An SR-TE LSP with a path definition that includes router R4 as a loose hop and for which Seamless-BFD has been enabled is following the path shown in the exhibit. What happens after router R4 fails if the routers along the path follow the default behavior?

A. The head end will continue forwarding traffic to the current next-hop indefinitely, which will be discarded at the point of failure.

B. The head end will periodically try to calculate a new path at a rate defined by the resignal timer.

C. The head end will continue forwarding traffic to the current next-hop indefinitely, and R2 will redirect the traffic to R3 after IGP reconvergence.

D. The head end will periodically try to calculate a new path at a rate defined by the retry timer.

Discussion 0

Correct Answer: A Vote an answer

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