Discuss Nokia 4A0-116 Exam Topic 6 Question 5

The exhibit highlights in blue the primary path of a segment going from router S to router D. The exhibit also shows a backup path. The protected link fails and fast re-route is triggered on router S. If the backup path has been calculated using standard LFA, how many SIDs are included in the label stack of the data packet forwarded to router R1?

Suggested Answer: A

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13 comments · newest first

Mica 11 months ago

I thought LFA was more complex, surprised it’s just one SID.

Elenor 12 months ago

Definitely going with option B, feels right!

Gertude 12 months ago

Wait, are we sure about that? Seems like it could be three.

Dick 1 year ago

I think it’s actually two SIDs for LFA.

Alton 1 year ago

The backup path usually adds one SID.

Tiera 1 year ago

I’m leaning towards 1 SID, but I’m not completely confident. This question feels tricky, and I wish I had more practice with these scenarios.

Coral 1 year ago

I recall that with fast re-route, the number of SIDs can vary. Could it be 4? That seems like a possibility based on what I studied.

Clemencia 1 year ago

I'm not entirely sure, but I feel like it could be 3 SIDs. I practiced a similar question last week that had a similar setup.

Valene 1 year ago

I think the backup path uses standard LFA, so maybe it has 2 SIDs? I remember something about that in the study material.

Sarina 1 year ago

Hmm, I'm a bit unsure about this one. I'll need to think through the different factors the courts consider, like the employer's policies and past practices. Gotta make sure I don't miss any important details.

Elouise 1 year ago

I'm a little confused by the options here. I know there are some URL-related functions in the language, but I'm not familiar with all of their names. I'll have to review my notes and try to reason this out.

Tish 1 year ago

I'm a bit confused on this one. The LFIB is used for label switching, but I'm not sure which specific field wouldn't be in there. I'll have to review my MPLS notes.

Dominga 1 year ago

I'm a bit confused about the Basel Committee's capital adequacy requirements. Does that really tie into AML policies directly?

Nokia 4A0-116 Exam - Topic 6 Question 5 Discussion