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Nokia 4A0-102 Exam - Topic 5 Question 43 Discussion

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?
C) Router R3 accepts updates transited through router R2 and rejects updates received from router R1.
A) Router R3 rejects all updates originating in AS 65540.
B) Router R3 accepts updates received from router R1 and rejects updates transited through router R2.
D) Router R3 accepts updates from both routers R1 and R2.

Nokia 4A0-102 Exam - Topic 5 Question 43 Discussion

Actual exam question for Nokia's 4A0-102 exam
Question #: 43
Topic #: 5
[All 4A0-102 Questions]

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?

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Suggested Answer: C

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

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Bernardo
6 months ago
I’m not sure about this one, can someone explain?
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Oliva
7 months ago
I think it’s A, all updates from that AS should be rejected.
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Yasuko
7 months ago
Wait, why would it accept updates from R1? Seems off.
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Rodrigo
7 months ago
Definitely B, that makes the most sense.
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Paola
7 months ago
Router R3 will reject updates from AS 65540.
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Ayesha
8 months ago
I feel like option B could be right because it mentions R1 and R2 specifically, but I’m not 100% confident about how the filtering works in this case.
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Glenn
8 months ago
I'm a bit confused about the difference between updates from R1 and R2. Does the path matter if they both lead to AS 65540?
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Elmira
8 months ago
I think I came across a similar question where updates were accepted or rejected based on AS Path. If I recall correctly, the regex ".+ 65540" means it would reject those updates.
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Laquanda
8 months ago
I remember studying AS Path filtering, but I'm not entirely sure how the regex applies here.
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Tasia
8 months ago
I'm pretty confident I know the answer here. The import policy is set up to reject all updates from AS 65540, so option A must be correct.
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Nelida
8 months ago
Hmm, I'm a bit confused about the regular expression used in the import policy. I'll need to review my notes on AS Path filtering to make sure I understand how that works.
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Colton
8 months ago
This question seems straightforward. I'll focus on the import policy configured on Router R3 and how it would impact updates from AS 65540.
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Ricki
8 months ago
Okay, let's think this through step-by-step. The question says the import policy rejects updates with an AS Path matching the regex ".+ 65540". So updates originating in AS 65540 should be rejected, regardless of the path.
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Chanel
8 months ago
A project management information system would be my pick. It's designed to collect, store, and distribute project data, which aligns with the question's focus on gathering and disseminating outputs.
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Toi
8 months ago
This seems like a straightforward question about managing guest users in a Microsoft 365 team. I think the key is to find a solution that can automatically send an email to all guest users in the Sales team to verify their membership.
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Jesusa
8 months ago
The IP address on the interface is making me question if that's the right approach. I'll need to review the EVPN best practices to be sure.
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Gilberto
8 months ago
If I recall correctly, assigning the primary template first could be the right method. It's always about the order of operations, right?
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Evelynn
1 year 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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Sharika
1 year ago
Chantay: No problem, happy to help!
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Chantay
1 year ago
Maryann: Got it, thanks for clarifying!
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Maryann
1 year ago
User 2: Router R3 accepts updates transited through router R2 and rejects updates received from router R1.
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Kimbery
1 year ago
User 1: So, what did you figure out about the import policy on R3?
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Dottie
1 year ago
That makes sense, the import policy on R3 is configured to reject updates with an AS Path matching the regular expression \'.+ 65540\'.
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Denae
1 year 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
1 year 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
1 year 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
1 year 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
1 year ago
Hmm, that makes sense too. I see why you think that.
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Margo
1 year 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 year ago
I think the answer is A) Router R3 rejects all updates originating in AS 65540.
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