Nokia Exam 4A0-103 Topic 1 Question 90 Discussion

Actual exam question for Nokia's 4A0-103 exam

Question #: 90
Topic #: 1

[All 4A0-103 Questions]

Which of the following best describes downstream unsolicited label distribution?

AAn LSR may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.

BAn LSR may advertise label mappings to all peers for which it might be a next-hop for a given FEC

CAn LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC next-hop.

DAn LSR will only distribute a label for a FEC when it has been requested to do so.

Show Suggested Answer

Suggested Answer: B

by Jina at Jun 24, 2024, 03:33 AM

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Gianna

3 days ago

Hmm, I was leaning towards C, where the LSR only propagates a label mapping downstream if it has a label for the next-hop. Sounds more like the 'unsolicited' part of the question.

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I think B is the correct answer. Downstream unsolicited label distribution means an LSR can advertise label mappings to all its peers, even if they haven't requested it. This is a common MPLS practice.

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Catrice

24 days ago

Hmm, that makes sense too. It's important to understand the concept clearly before choosing the right answer.

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Coral

28 days ago

I disagree, I believe the correct answer is C) An LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC next-hop.

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Catrice

29 days ago

I think the answer is A) An LSR may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.

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Nokia Exam 4A0-103 Topic 1 Question 90 Discussion

Contribute your Thoughts:

Gianna

Elin

Catrice

Coral

Catrice