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Nokia 4A0-102 Exam - Topic 2 Question 67 Discussion

A router in AS 65100 receives three routes for 138.120.0.0/16. The first route has an AS Path of 65200 65400 65300 and a local preference of 150. The second route has an AS Path of 65200 65300 and a local preference of 100. The third route has an AS Path of 65600 65300 and a local preference of 100. Which route will appear in the RIB-out?
A) Only the first route will appear in the RIB-Out.
B) Only the second route will appear in the RIB-Out.
C) Only the third route will appear in the RIB-Out.
D) All routes will appear in the RIB-Out.

Nokia 4A0-102 Exam - Topic 2 Question 67 Discussion

Actual exam question for Nokia's 4A0-102 exam
Question #: 67
Topic #: 2
[All 4A0-102 Questions]

A router in AS 65100 receives three routes for 138.120.0.0/16. The first route has an AS Path of 65200 65400 65300 and a local preference of 150. The second route has an AS Path of 65200 65300 and a local preference of 100. The third route has an AS Path of 65600 65300 and a local preference of 100. Which route will appear in the RIB-out?

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Suggested Answer: A

by Patti at Sep 19, 2024, 04:50 AM

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Evangelina
9 months ago
I thought all routes could be sent out, but I guess not!
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Deeanna
9 months ago
Only the first route makes sense here.
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Lanie
10 months ago
Wait, are we sure about that? What if there's a tie?
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Roselle
10 months ago
Totally agree, local preference rules!
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Terrilyn
10 months ago
The first route has the highest local preference, so it should be the one.
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Jerry
10 months ago
I’m a bit confused about how the AS Path affects the decision here. Does the local preference override it completely? I hope I remember the right details!
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Ria
11 months ago
I practiced a similar question where local preference was the deciding factor. I feel like the first route will definitely be selected for the RIB-out.
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Anabel
11 months ago
I'm not entirely sure, but I think the AS Path length also plays a role. The first route has the longest AS Path, but it has the highest local preference too.
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Talia
11 months ago
I remember that local preference is a key factor in route selection, so I think the first route with a local preference of 150 should be the one.
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Dana
11 months ago
I'm a little confused by the different AS paths. I'll need to double-check how the BGP decision process handles AS path length compared to local preference. This one might take me a bit of time to work through.
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Derick
11 months ago
Okay, I've got this. The route with the highest local preference (150) will be selected, which is the first route. The other routes have a lower local preference of 100, so they won't be selected.
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Donette
11 months ago
Hmm, I'm a bit unsure about this one. The local preference values are different, but the AS paths also vary. I'll need to review the BGP decision process to figure this out.
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Leonida
11 months ago
This looks like a standard BGP route selection question. I'll need to carefully consider the BGP path attributes to determine which route will be selected.
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Sanda
2 years ago
The correct answer is A. The first route, with the highest local preference, will be the one that appears in the RIB-out. Seriously, this is Routing 101, people.
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Nada
2 years ago
Got it, thanks for the clarification.
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Ashley
2 years ago
Yes, that's correct. The route with the highest local preference takes precedence.
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Carin
2 years ago
I think the first route will appear in the RIB-Out.
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Raymon
2 years ago
But what about the AS Path? Wouldn't that also play a role in route selection?
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Gianna
2 years ago
The router will choose the route with the highest local preference, which is the first one. Simple as that. Now, can we talk about something more interesting, like the latest cat memes?
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Kerrie
2 years ago
I don't know, man. This question is making my head spin like a top. I need some coffee to think straight.
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Sabine
2 years ago
Great, now you can enjoy your coffee without worrying about this question.
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Maryrose
2 years ago
So, the answer is A) Only the first route will appear in the RIB-Out.
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Jeffrey
2 years ago
The first route with the AS Path of 65200 65400 65300 and local preference of 150 will appear in the RIB-Out.
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Mozelle
2 years ago
Don't worry, I can help you with that. Let's break it down together.
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Gianna
2 years ago
Hold on, what about that extra-long AS path of the first route? Wouldn't the router prefer the shorter paths of the second and third routes?
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Kallie
2 years ago
The first route with the highest local preference of 150 should definitely be in the RIB-out. It's a no-brainer.
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Taryn
2 years ago
Yes, the router will choose the route with the highest local preference to appear in the RIB-out.
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Allene
2 years ago
That makes sense, local preference plays a big role in route selection.
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Patria
2 years ago
The first route with the highest local preference of 150 will be in the RIB-out.
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Lynsey
2 years ago
I agree with Jina, the first route has the highest local preference.
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Jina
2 years ago
I think only the first route will appear in the RIB-Out.
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