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Nokia 4A0-112 Exam - Topic 1 Question 1 Discussion

A series of actions are triggered on a router as a result of enabling both loopfree-alternate for a link-state routing protocol and ip-fast-reroute. Which of the following is NOT one of those actions?
A) Calculating the shortest-path next hop for each known IP prefix.
B) Calculating a backup next hop for each known IP prefix, if it exists, that would not create a routing loop if used without informing other routers.
C) Installing two entries in the FIB for IP prefixes, one active and one in standby mode.
D) Enabling the router to locally repair the active path to an IP prefix in case of failure.

Nokia 4A0-112 Exam - Topic 1 Question 1 Discussion

Actual exam question for Nokia's 4A0-112 exam
Question #: 1
Topic #: 1
[All 4A0-112 Questions]

A series of actions are triggered on a router as a result of enabling both loopfree-alternate for a link-state routing protocol and ip-fast-reroute. Which of the following is NOT one of those actions?

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Suggested Answer: A

by Catherin at Jan 27, 2025, 11:34 AM

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Kris
9 months ago
I thought they all sounded right, but A is the odd one out.
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Gretchen
9 months ago
B is what I thought too, but it makes sense.
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Ellsworth
10 months ago
Wait, are we sure about D? That sounds important.
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Samira
10 months ago
I agree, C seems off too.
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Royce
10 months ago
A is definitely not one of those actions.
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Penney
10 months ago
Enabling local repairs seems like a key feature, but I can't recall if it directly relates to the actions listed here.
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Rebecka
11 months ago
I practiced a similar question last week, and I feel like calculating the backup next hop is definitely part of the process.
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Fidelia
11 months ago
I think option C sounds familiar, like it might not be something that happens with ip-fast-reroute.
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Leota
11 months ago
I remember studying loop-free alternate, but I'm not entirely sure about the specific actions it triggers.
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Celia
11 months ago
I think the key here is to focus on the "NOT" part of the question. That means we need to identify the action that is not triggered by enabling those features. Option C seems the most likely candidate.
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Viva
11 months ago
I'm a bit unsure about this one. The options all seem plausible, but I'll need to review my understanding of how these features work to determine the right answer.
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Crissy
11 months ago
I'm pretty confident that the correct answer is A. Calculating the shortest-path next hop is a fundamental routing function, not something that would be triggered by those specific features.
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Leonora
11 months ago
Okay, let's see. I know that ip-fast-reroute is about providing fast local repair, so that's probably not the answer. The other options seem more related to the core functionality.
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Myong
11 months ago
Hmm, this is a tricky one. I'll need to think carefully about the actions triggered by enabling both loopfree-alternate and ip-fast-reroute.
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Francesco
2 years ago
I think the answer is B, because it doesn't involve installing entries in the FIB.
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Krystal
2 years ago
Wait, so they're asking us what's NOT done? That's like a double negative, right? My head hurts just thinking about it!
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Trinidad
2 years ago
This is a tricky one. I'm going to have to do some more research on IP-FRR before I can be confident in my answer.
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Judy
2 years ago
I think B is the correct answer. Calculating a backup next hop without informing other routers would be a security risk.
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Josephine
1 year ago
Actually, D is the correct answer. Enabling the router to locally repair the active path is a key feature of loopfree-alternate and ip-fast-reroute.
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Kristel
1 year ago
I believe C is the correct answer. Installing two entries in the FIB for IP prefixes makes sense for redundancy.
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Brendan
1 year ago
I agree, A seems like a standard procedure for routing protocols.
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Desmond
2 years ago
I think A is the correct answer. Calculating the shortest-path next hop is a common action.
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Marget
2 years ago
I'm not sure, but I think it might be A.
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King
2 years ago
D sounds like the obvious answer to me. Enabling local repair is a key feature of IP-FRR, not something that's not done.
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Colene
2 years ago
I disagree, I believe the answer is D.
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Nu
2 years ago
Hmm, I'm not sure about C. Isn't that a bit excessive to have two FIB entries per prefix?
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Noel
1 year ago
Yeah, having two FIB entries per prefix does seem excessive.
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Paris
1 year ago
D) Enabling the router to locally repair the active path to an IP prefix in case of failure.
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Stephanie
2 years ago
B) Calculating a backup next hop for each known IP prefix, if it exists, that would not create a routing loop if used without informing other routers.
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Gwenn
2 years ago
A) Calculating the shortest-path next hop for each known IP prefix.
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Gaynell
2 years ago
I think the answer is C.
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