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Nokia 4A0-115 Exam - Topic 9 Question 27 Discussion

A. Proxy-ARP/ND is operational for a VPLS. Which of the following statements is FALSE?
B) The PE has proxy-ARP and dynamic-populate enabled for the VPLS.
C) The proxy-ARP table is populated by snooping IP packets received from remote PEs.
D) When the PE learns a local host IP address, it adds an entry into its proxy-ARP table.
E) The PE advertises a MAC/IP route that includes the MAC and IP address of a local host.

Nokia 4A0-115 Exam - Topic 9 Question 27 Discussion

Actual exam question for Nokia's 4A0-115 exam
Question #: 27
Topic #: 9
[All 4A0-115 Questions]

A. Proxy-ARP/ND is operational for a VPLS. Which of the following statements is FALSE?

Show Suggested Answer Hide Answer
Suggested Answer: A

The local AC tag ID configured on PE2 must match the local AC tag ID configured on PE1. This ensures that the tag IDs are consistent across both ends of the VPWS service.The remote AC tag ID configured on PE2 does not need to match the remote AC tag ID configured on PE3, as long as they are unique within each PE1.

Verified Reference:Ethernet Virtual Private Networks (EVPNs)


by Emerson at Aug 03, 2024, 12:33 PM

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Elenore
9 months ago
How does the PE learn local host IPs anyway?
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Lindsay
9 months ago
Totally agree with B being false!
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Rosendo
10 months ago
Wait, are we sure about C? Sounds off.
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Edgar
10 months ago
I think B is the false one.
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Yan
10 months ago
Proxy-ARP is crucial for VPLS functionality.
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Mindy
10 months ago
I think the proxy-ARP table gets populated from snooping, but I'm not entirely sure if that's the only way it works in this context.
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Ronna
11 months ago
I feel like option B might be the false one, but I can't quite remember if dynamic-populate is always enabled for VPLS.
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Devon
11 months ago
I practiced a similar question where the PE was involved in learning IP addresses, but I can't recall if it actually advertises MAC/IP routes.
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Francesco
11 months ago
I think I remember that proxy-ARP is used to help with IP address resolution, but I'm not sure if it applies to VPLS in the same way as regular ARP.
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Adelle
11 months ago
The key here is understanding the behavior of Proxy-ARP/ND in a VPLS context. If I can recall the correct mechanisms, I should be able to identify the false statement.
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Dalene
11 months ago
I'm pretty confident I know the answer to this one. Proxy-ARP and dynamic-populate are commonly used features in VPLS environments, so I think I can eliminate the incorrect statement.
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Chandra
11 months ago
Okay, let me think this through. The question is asking which statement is false, so I need to carefully evaluate each option and identify the one that is incorrect.
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My
11 months ago
This question seems straightforward, but I want to make sure I understand the key concepts around Proxy-ARP/ND and VPLS before selecting an answer.
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Stevie
11 months ago
Hmm, I'm a bit unsure about the details of how the proxy-ARP table is populated in a VPLS setup. I'll need to review that part carefully before selecting an answer.
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Leigha
11 months ago
Hmm, I'm a bit unsure about this one. The options seem to cover different aspects of capability mapping, so I'll need to carefully consider how each one relates to the purpose.
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Malinda
11 months ago
I've worked with Azure networking and firewalls before, so I think I've got a good handle on this. My initial thought is that configuring route filters for Microsoft peering should meet the goal, but I'll double-check the details to be sure.
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Lonny
1 year ago
Wait, are we supposed to be learning about proxy-ARP or proxy-IP? I'm getting a bit confused here.
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Kayleigh
1 year ago
This question is a real brain-teaser! I hope I can remember the difference between ARP and IP packets for the exam.
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Juliann
1 year ago
So, the proxy-ARP table is not populated by snooping IP packets from remote PEs.
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Kimberlie
1 year ago
That's correct! The PE actually learns local host IP addresses and adds them to its proxy-ARP table.
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Linwood
1 year ago
I think the false statement is B) The PE has proxy-ARP and dynamic-populate enabled for the VPLS.
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Denny
1 year ago
Option B seems to be the false statement. The PE has proxy-ARP and dynamic-populate enabled for the VPLS, not the other way around.
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Carlton
1 year ago
That makes sense, thanks for clarifying.
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Cecilia
1 year ago
Yes, the PE has proxy-ARP and dynamic-populate enabled for the VPLS.
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Billye
1 year ago
I think option B is the false statement.
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Pamella
1 year ago
I think Option D is the correct answer. The PE adds an entry into its proxy-ARP table when it learns a local host's IP address.
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Daren
1 year ago
User 2: That makes sense. The proxy-ARP table is populated by snooping IP packets received from remote PEs.
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Gladys
1 year ago
User 1: I think Option D is correct. The PE adds an entry into its proxy-ARP table when it learns a local host's IP address.
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Werner
1 year ago
Option C is incorrect. The proxy-ARP table is populated by snooping ARP packets, not IP packets.
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Lauryn
1 year ago
E) The PE advertises a MAC/IP route that includes the MAC and IP address of a local host.
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Nelida
1 year ago
D) When the PE learns a local host IP address, it adds an entry into its proxy-ARP table.
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Muriel
1 year ago
C) The proxy-ARP table is populated by snooping ARP packets received from remote PEs.
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Cordie
1 year ago
B) The PE has proxy-ARP and dynamic-populate enabled for the VPLS.
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Svetlana
1 year ago
I believe the correct answer is C) as well, because proxy-ARP is based on ARP requests, not IP packets.
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Jerrod
1 year ago
I agree with Ronny, because the proxy-ARP table is actually populated by snooping ARP requests, not IP packets.
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Ronny
1 year ago
I think the false statement is C) The proxy-ARP table is populated by snooping IP packets received from remote PEs.
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