Nokia Exam 4A0-102 Topic 5 Question 43 Discussion

Actual exam question for Nokia's 4A0-102 exam

Question #: 43
Topic #: 5

Click the exhibit.

Router R3 is configured with an import policy to reject updates with an AS Path matching the regular expression ".+ 65540". Which of the following regarding updates originating in AS 65540 is TRUE?

ARouter R3 rejects all updates originating in AS 65540.

BRouter R3 accepts updates received from router R1 and rejects updates transited through router R2.

CRouter R3 accepts updates transited through router R2 and rejects updates received from router R1.

DRouter R3 accepts updates from both routers R1 and R2.

Show Suggested Answer

Suggested Answer: C

by Selma at Aug 29, 2023, 06:22 PM

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Evelynn

22 days ago

Alright, let's break this down. The key is understanding how the import policy works on R3. I think I've got it figured out.

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Denae

2 days ago

I believe the correct answer is B) Router R3 accepts updates received from router R1 and rejects updates transited through router R2.

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Melina

24 days ago

Haha, this reminds me of that time I got a question wrong on a routing exam because I mixed up the routers. No way I'm making that mistake again!

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Davida

25 days ago

Okay, let's see... If the AS Path matches the regex, that means the update is rejected, right? But which routers does that apply to?

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Floyd

27 days ago

Hmm, this looks like a tricky one. I'll need to think carefully about the implications of that regular expression.

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Zona

30 days ago

Hmm, that makes sense too. I see why you think that.

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Margo

1 months ago

I disagree, I believe the answer is B) Router R3 accepts updates received from router R1 and rejects updates transited through router R2.

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Zona

1 months ago

I think the answer is A) Router R3 rejects all updates originating in AS 65540.

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