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Nokia 4A0-106 Exam - Topic 4 Question 43 Discussion

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?
B) ASBR1 sends an IPv4 update for prefix 192.168.1.0/27 to ASBR2.
A) PE1 sends an IPv4 update for prefix 192.168.1.0/27 via MP-BGP to ASBR1.
C) ASBR1 transforms an IPv4 update for prefix 192.168.1.0/27 to a VPN-IPv4 route; allocates VPN label V1 and sends the update to ASBR2.
D) ASBR2 accepts a VPN-IPv4 update from ASBR1, then sends the update to PE2 via MP-BGP.

Nokia 4A0-106 Exam - 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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Albina
7 months ago
B is definitely wrong, ASBR1 doesn't send updates like that.
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Sina
7 months ago
Wait, are we sure about D? Sounds off to me.
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Xenia
7 months ago
I think C is the right answer, though.
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Reita
8 months ago
Totally agree, that's how BGP works in VPRN!
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Regenia
8 months ago
A is correct, PE1 sends the update via MP-BGP.
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Mireya
8 months ago
I feel like option D could be correct since it involves ASBR2 accepting a VPN-IPv4 update, but I can't recall the exact flow we studied.
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Shalon
8 months ago
I'm a bit confused about the role of ASBR1 in this scenario. Does it really send updates to ASBR2, or is it more about the transformation process?
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Florinda
8 months ago
I think option C sounds familiar because it mentions transforming the IPv4 update to a VPN-IPv4 route, which we practiced in a similar question.
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Kanisha
8 months ago
I remember something about PE-CE routing protocols, but I'm not sure if PE1 sends the update directly to ASBR1 or if it goes through another step first.
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Titus
8 months ago
Okay, I remember learning about this in class. I believe the invoicing process includes the creation of FI-CA documents, discount calculation, and the preparation of invoice print. I'll double-check the other options to make sure I have all the correct answers.
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Malcom
8 months ago
The key log file option sounds right to me. That's how I've seen Wireshark decrypt TLS traffic in the past.
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Iluminada
8 months ago
Okay, I know XML can handle more complex data structures, but JSON is simpler and more lightweight. I'll focus on those core differences.
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Glennis
8 months ago
I think the answer might be C since if googledocs.enabled is false, then the Edit option wouldn't work at all.
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Omer
8 months ago
I'm confused about whether just looking at one of those is enough. I remember something in class about a balance between risks, but I can't recall the specifics.
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Doug
1 year 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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Cassi
11 months ago
D) ASBR2 accepts a VPN-IPv4 update from ASBR1, then sends the update to PE2 via MP-BGP.
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Eleonore
11 months ago
C) ASBR1 transforms an IPv4 update for prefix 192.168.1.0/27 to a VPN-IPv4 route; allocates VPN label V1 and sends the update to ASBR2.
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Bobbie
12 months 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 year 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 year 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 year 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 year 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
12 months ago
So, the control plane operation involves transforming the update and sending it with the VPN label.
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Micaela
1 year ago
That's right. The ASBR allocates a VPN label before sending the update to the other ASBR.
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Irma
1 year 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
1 year ago
So, the VPN-IPv4 update is then sent from ASBR1 to ASBR2 before reaching the destination PE router.
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Loise
1 year ago
That's right. The ASBR then allocates a VPN label before sending the update to the other ASBR.
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Glory
1 year 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
1 year 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
1 year ago
I'm not sure, but I think D could also be a valid option.
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Rory
1 year ago
I agree with Marquetta, ASBR1 transforms the update to a VPN-IPv4 route.
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Marquetta
1 year ago
I think the answer is C.
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