Nokia Exam 4A0-116 Topic 12 Question 32 Discussion

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

Question #: 32
Topic #: 12

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?

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

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

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

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

Show Suggested Answer

Suggested Answer: B

by Lasandra at Jun 30, 2024, 02:37 AM

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Walton

11 months ago

This question is about as straightforward as a labyrinth. But I'll go with C and hope for the best.

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Lenna

11 months ago

I agree, C makes sense because it is the tail-end of the active segment.

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Billy

11 months ago

I think the answer is C, to reach router R4.

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Na

11 months ago

But the question mentions fast re-route (FRR) being triggered, so it makes sense to reach the tail-end of the LSP, which is router R8.

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Helaine

12 months ago

I disagree, I believe the correct answer is D) To reach router R8.

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Na

12 months ago

I think the answer is C) To reach router R4.

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Wilda

12 months ago

Haha, I bet the exam writers thought this one was really clever. But I'm sticking with C - can't fool me that easily!

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Moira

12 months ago

I've got to go with C. It just makes the most sense that the packets would be forwarded to the tail-end of the active segment.

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Ming

12 months ago

Hmm, this is a tricky one. I'm leaning towards D though. Reaching the tail-end of the LSP, which is R8, seems like the intended result of the FRR process.

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