Nokia 4A0-114 Exam - Topic 3 Question 40 Discussion

Actual exam question for Nokia's 4A0-114 exam

Question #: 40
Topic #: 3

An export policy is applied on a router to advertise a prefix to its eBGP peers. By default, which of the following updates are made to the route attributes?

ALOCAL_PREFERENCE is set to 100.

BNEXT_HOP is set to the neighbor router's interface IP address.

CThe local AS number is added to AS_PATH.

DCOMMUNITY is set to the local AS number.

Show Suggested Answer

Suggested Answer: C

by Nikita at Aug 27, 2024, 06:39 AM

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Emeline

3 months ago

I agree, that's how it works in most cases!

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Gianna

3 months ago

Wait, COMMUNITY is set to the local AS number? Really?

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Douglass

3 months ago

Definitely, AS_PATH gets the local AS number added.

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Ling

4 months ago

I thought NEXT_HOP was always the neighbor's IP!

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Casie

4 months ago

LOCAL_PREFERENCE is usually set to 100 by default.

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Johana

4 months ago

I feel like COMMUNITY attributes might relate to the local AS, but I don't know if that's the default setting when advertising prefixes.

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Krissy

4 months ago

I practiced a question like this where AS_PATH was mentioned, but I can't remember if the local AS number gets added automatically.

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Deangelo

4 months ago

I remember something about NEXT_HOP being the neighbor's IP, but I can't recall if that's the default behavior when exporting prefixes.

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Nina

5 months ago

I think LOCAL_PREFERENCE is usually set to 100 by default, but I'm not entirely sure if that's for eBGP specifically.

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Winfred

5 months ago

Ah, I remember this now. When advertising a route to eBGP peers, the NEXT_HOP attribute is set to the neighbor's interface IP. I'm pretty sure that's the right answer.

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Yuki

5 months ago

Okay, let's see. The key here is to remember how BGP handles route advertisements to external peers. I think the answer is B, but I'll double-check my notes just to be sure.

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Lyla

5 months ago

Hmm, I'm not too sure about this. I know we covered BGP route attributes in class, but I'm having a hard time remembering the specifics. I'll have to think this through carefully.

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Shawna

5 months ago

This looks like a pretty straightforward BGP question. I'm pretty confident I can handle this one.

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Afton

5 months ago

I remember practicing a similar question where we had to prevent form submission. I think adding return false after the alert makes sense.

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Minna

5 months ago

I'm a bit confused by this question. There seem to be a lot of potential causes listed. I'll need to really think through the zone boot process and what kinds of issues could arise.

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Candra

1 year ago

I agree with Lashaunda, the correct answer is A.

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Lashaunda

1 year ago

But doesn't the export policy set LOCAL_PREFERENCE to 100?

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Matthew

1 year ago

B is the way to go. Setting the NEXT_HOP to the neighbor router's interface IP address is like giving the package the right address to reach its destination.

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