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Huawei Exam H31-161 Topic 6 Question 84 Discussion

Actual exam question for Huawei's H31-161 exam
Question #: 84
Topic #: 6
[All H31-161 Questions]

On a city's dual-plane bearer network, PE1-A and PE1-B are two PEs in different planes of the city.

Three CEs are on the same VPN. The OSPF is used to exchange VPN route information between CE

1 and PE1-A and between CE 2 and PE1-B. The default route leading to PE1-A is configured on CE

3, and a static route leading to CE 3 is configured on PE1-

Show Suggested Answer Hide Answer
Suggested Answer: C

by Sheron at Apr 14, 2024, 10:55 PM

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Viola
7 months ago
But the static route leading to CE 3 is learned based on the IBGP neighbor relationship between PEs.
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Freeman
7 months ago
I disagree. I believe the answer is B, as there are two possible routes that can reach CE 3.
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Joana
7 months ago
I agree with because the static route is imported to the OSPF and then to the VPN instance of the BGP.
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Viola
7 months ago
I think the correct answer is A.
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Rebecka
8 months ago
But if the routes are imported to BGP and OSPF, wouldn't that allow more routes to reach CE 3?
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Nicolette
8 months ago
I'm leaning towards C, I don't think any route can reach CE 3
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Eloisa
8 months ago
I disagree, I believe the answer is A because of the way routes are imported and filtered
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Rebecka
9 months ago
I think the answer is B because there are two routes that can reach CE 3
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Frank
9 months ago
Haha, I bet the exam writers are trying to trip us up with this one. They probably want us to think about things like OSPF loopback detection and how that might impact the routing on PE1-B.
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Blair
9 months ago
Aha, I think I see where this is going. The static route on PE1-A is likely being imported into the OSPF domain, and then the OSPF route is being imported into the VPN instance of the BGP. That would give us two possible routes to CE3 on PE1-B.
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Arlette
8 months ago
I agree. One route from IBGP neighbor and the other from OSPF category-5 route.
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Daren
8 months ago
I think the answer is B) Two
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Alpha
9 months ago
Okay, let's break this down step-by-step. We have OSPF being used to exchange VPN route information between CE1 and PE1-A, and between CE2 and PE1-B. Then we have a static route configured on PE1-A leading to CE3.
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Wilda
10 months ago
Hmm, I think the key here is understanding how the OSPF and BGP routes are being imported and exchanged between the different components. That will likely determine the number of routes that PE1-B can reach CE 3 with.
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Lilli
10 months ago
Yeah, this is definitely not a straightforward question. We need to carefully consider the different routing mechanisms and how they interact in this scenario.
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Janine
10 months ago
This is a tricky question. It seems to involve some complex networking concepts like dual-plane bearer networks, OSPF, BGP, and VPN routing. I'm not sure I fully understand all the details, but I'll give it my best shot.
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