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Nokia Exam 4A0-106 Topic 4 Question 43 Discussion

Actual exam question for Nokia's 4A0-106 exam
Question #: 43
Topic #: 4
[All 4A0-106 Questions]

Click the exhibit.

For the inter-AS model A VPRN. BGP is used as the PE-CE routing protocol. Which of the following statements about the control plane operation is TRUE?

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Suggested Answer: B

by Janine at Mar 25, 2023, 08:12 PM

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Doug
30 days ago
This is like a routing protocol sudoku puzzle! I bet the engineers who wrote this question were having a good laugh.
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Bobbie
7 days ago
A) PE1 sends an IPv4 update for prefix 192.168.1.0/27 via MP-BGP to ASBR1.
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Talia
1 months ago
Option C seems the most logical to me. The ASBR has to do some VPN-specific processing on the routing update before passing it along.
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Audra
1 months ago
Haha, this question is a real brain-teaser! I'm going to have to carefully think this through step-by-step to make sure I get the right answer.
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Annice
1 months ago
I'm going with option D. The ASBR on the other side will accept the VPN-IPv4 update and then forward it to the PE router using MP-BGP.
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Charlette
1 months ago
Option C seems like the correct answer here. The PE-CE routing protocol is BGP, so the PE router will send an IPv4 update to the ASBR. The ASBR then needs to transform that to a VPN-IPv4 route and allocate a VPN label before sending it to the other ASBR.
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Brittney
9 days ago
So, the control plane operation involves transforming the update and sending it with the VPN label.
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Micaela
16 days ago
That's right. The ASBR allocates a VPN label before sending the update to the other ASBR.
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Irma
17 days ago
Exactly. This process ensures proper routing in the inter-AS model VPRN using BGP as the PE-CE protocol.
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Reita
18 days ago
So, the VPN-IPv4 update is then sent from ASBR1 to ASBR2 before reaching the destination PE router.
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Loise
19 days ago
That's right. The ASBR then allocates a VPN label before sending the update to the other ASBR.
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Glory
21 days ago
I agree, option C is the correct answer. The ASBR transforms the IPv4 update to a VPN-IPv4 route.
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Vonda
23 days ago
I agree, option C is the correct answer. The ASBR transforms the IPv4 update to a VPN-IPv4 route.
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Jerrod
3 months ago
I'm not sure, but I think D could also be a valid option.
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Rory
3 months ago
I agree with Marquetta, ASBR1 transforms the update to a VPN-IPv4 route.
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Marquetta
3 months ago
I think the answer is C.
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