Nokia Exam 4A0-116 Topic 8 Question 14 Discussion

Actual exam question for Nokia's 4A0-116 exam

Question #: 14
Topic #: 8

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?

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

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

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

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

Show Suggested Answer

Suggested Answer: D

by Iluminada at Aug 08, 2023, 01:23 PM

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Hildred

7 days ago

But if R4 fails, the head end will continue forwarding traffic to the current next-hop indefinitely, and R2 will redirect the traffic to R3 after IGP reconvergence, so I think D makes more sense.

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Charisse

9 days ago

I'm pretty sure the answer is D. The head end will continue forwarding traffic to the current next-hop indefinitely, and R2 will redirect the traffic to R3 after IGP reconvergence. That makes the most sense to me.

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Marshall

11 days ago

The answer is B, the head end will periodically try to calculate a new path at a rate defined by the resignal timer. This is because the question mentions that the path definition includes a loose hop, so the head end will need to recalculate the path after the failure of R4.

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Yolando

11 days ago

I disagree, I believe the correct answer is D.

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Hildred

12 days ago

I think the answer is C.

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