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Nokia 4A0-102 Exam - Topic 1 Question 55 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 200. Which route will appear in the RIB-In?
B) Only the second route will appear in the RIB-In.
A) Only the first route will appear in the RIB-In.
C) Only the third route will appear in the RIB-In.
D) All routes will appear in the RIB-In.

Nokia 4A0-102 Exam - Topic 1 Question 55 Discussion

Actual exam question for Nokia's 4A0-102 exam
Question #: 55
Topic #: 1
[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 200. Which route will appear in the RIB-In?

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Suggested Answer: B

by Arlen at Apr 30, 2024, 08:40 PM

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Howard
8 months ago
All routes? Nah, only one will make it in.
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Dana
8 months ago
Definitely going with the third route for RIB-In!
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Micaela
8 months ago
Wait, why would the first route be chosen over the third?
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Adria
8 months ago
I think the first route is better because of the AS Path length.
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Laine
9 months ago
The third route has the highest local preference, so it should be selected.
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Tiera
9 months ago
I’m confused about the AS Path part. Does the local preference override it completely? I feel like I need to double-check that before answering.
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Eric
9 months ago
I practiced a similar question where local preference was key, and I think the highest one wins. So, I’d lean towards the third route again.
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Phyliss
9 months ago
I'm not entirely sure, but I think the AS Path length also plays a role. The first route has a longer AS Path, which might affect its selection.
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Eden
9 months ago
I remember we discussed local preference being the primary factor in route selection, so I think the third route with a local preference of 200 should be the one.
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Whitney
9 months ago
Okay, I've got this. The router will select the route with the highest local preference, which is the third route with a local preference of 200. The other routes have lower local preferences, so they won't be selected.
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Levi
9 months ago
Hmm, I'm a bit confused by the different AS paths and local preferences. I'll need to review my BGP knowledge to figure out how the router will choose the best route.
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Suzi
10 months ago
This looks like a tricky BGP routing question. I'll need to carefully consider the BGP path selection process to determine which route will be selected.
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Francoise
10 months ago
I think I know the answer, but I want to double-check my understanding. The router will choose the route with the highest local preference, regardless of the AS path length, right?
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Lanie
10 months ago
This looks like a complex question with a lot of moving parts. I'll need to carefully read through the details and think through the different patterns that could be applied to address the various issues.
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Bernardo
10 months ago
Hmm, I'm a bit unsure about this one. I know the rendered attribute is used to show or hide components, but I'm not sure about the specifics of re-rendering. I'll have to think this through carefully.
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Therese
10 months ago
Reducing the image shape seems like the easiest fix, but I'm worried that might impact model performance. I'd try the batch size first and see if that resolves the issue.
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Laila
1 year ago
Wait, wait, wait... did someone say 'router'? I thought this was going to be about cake recipes or something. *scratches head* Okay, let me focus here...
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Johnetta
1 year ago
The third route will appear in the RIB-In.
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Dustin
1 year ago
The second route will not appear in the RIB-In.
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Zona
1 year ago
The first route will appear in the RIB-In.
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Tegan
1 year ago
Ah, I remember learning about this in my BGP class. The route with the highest local preference wins, regardless of the AS Path length. C is the correct answer, no doubt about it.
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Alisha
1 year ago
Good to know for future network configurations.
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Stephane
1 year ago
Exactly, local preference takes precedence over AS Path length in BGP route selection.
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Verlene
1 year ago
So the third route with a local preference of 200 will be in the RIB-In.
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Santos
1 year ago
I agree, the route with the highest local preference will be chosen.
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Berry
1 year ago
I'm going to have to think this one through carefully. The local preference is the key factor here, but the AS Path lengths also play a role. Hmm, let me work this out step-by-step.
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Harris
1 year ago
User2: That makes sense, local preference takes precedence over AS Path length.
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Rhea
1 year ago
User1: The first route with a local preference of 150 will appear in the RIB-In.
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Louvenia
1 year ago
The third route has the highest local preference, so it should be the one that appears in the RIB-In. This seems like a pretty straightforward question.
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Carisa
1 year ago
But what about the AS Path length? The second route has a shorter AS Path.
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Marguerita
1 year ago
I agree with Melodie, the first route has the highest local preference.
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Melodie
1 year ago
I think only the first route will appear in the RIB-In.
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