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Nokia 4A0-105 Exam - Topic 2 Question 115 Discussion

Actual exam question for Nokia's 4A0-105 exam
Question #: 115
Topic #: 2
[All 4A0-105 Questions]

Which of the following functions must a PE router support when participating in a VPLS service? (Choose 3)

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Suggested Answer: A, B, D

by Milly at Jul 31, 2025, 07:35 PM

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Eric
2 months ago
A and D are obvious, but B is questionable.
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Bo
2 months ago
Wait, does it really need to do frame replication?
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Alesia
2 months ago
I think E is also a must.
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Elly
3 months ago
Definitely A, B, and D!
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Rolande
3 months ago
MAC learning is essential for sure!
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Mollie
3 months ago
I feel like I read that PE routers must discard frames with unknown destination MACs, but I can't recall if that's a requirement for VPLS specifically.
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Rodolfo
3 months ago
Frame forwarding seems like a must-have too, but I'm a bit confused about whether frame fragmentation is needed.
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Tori
4 months ago
I remember practicing a question similar to this, and I think frame replication is crucial for VPLS.
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Ezekiel
4 months ago
I think MAC learning is definitely one of the functions, but I'm not sure about the others.
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Kasandra
4 months ago
I'm a little stuck on this one. I know VPLS is important, but I'm not sure I fully understand all the router capabilities required. I'll have to review my notes on that.
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Ling
4 months ago
I'm confident I can get this one. The PE router has to support MAC learning, frame replication, and frame forwarding for VPLS. The other options don't seem directly relevant.
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Kerrie
4 months ago
Okay, let me think this through. The PE router needs to handle MAC learning, frame replication, and frame forwarding, right? Those seem like the core functions.
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Desmond
5 months ago
Hmm, I'm a bit unsure about this one. I know VPLS is a Layer 2 VPN, but I'm not totally clear on all the specific router requirements.
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Jennie
5 months ago
This question seems straightforward, I'll start by identifying the key functions a PE router must support in a VPLS service.
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Rachael
6 months ago
Alright, let's see... A, B, and D. Easy peasy. Though I have to admit, the 'Must discard frames with an unknown destination MAC' option has a certain je ne sais quoi to it. Might spice things up a bit, you know?
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Julianna
5 months ago
Yeah, I agree. 'Must discard frames with an unknown destination MAC' does sound interesting though.
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Mira
5 months ago
I think A, B, and D are the correct functions.
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Rickie
6 months ago
I'm just gonna go with the classics - A, B, and D. No need to overcomplicate things. Although, 'Must discard frames with an unknown destination MAC' does sound like a fun party trick.
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Dean
7 months ago
I think Frame replication could also be important for redundancy in VPLS service.
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Adelina
7 months ago
Haha, 'Frame fragmentation'? What is this, IPv4? VPLS is all about keeping those frames intact and moving them around. A, B, and D are the clear winners here.
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Boris
5 months ago
D) Frame forwarding
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Justa
5 months ago
B) Frame replication
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Larue
5 months ago
B) Frame replication
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Darell
5 months ago
A) MAC learning
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Nohemi
5 months ago
A) MAC learning
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Pearline
7 months ago
I agree with Cordie, MAC learning, discarding frames with unknown destination MAC, and frame forwarding are essential for VPLS service.
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Cordie
7 months ago
A, E, D are the functions that a PE router must support.
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Leonida
7 months ago
A, B, and D are definitely required for a PE router in VPLS. C and F are not needed, and E is just weird - why would we want to discard frames with unknown MAC addresses?
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Kris
5 months ago
Agreed, discarding frames with unknown MAC addresses doesn't make sense.
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Tambra
6 months ago
Yeah, C and F are not necessary for VPLS.
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Cornell
7 months ago
A, B, and D are essential for VPLS service on a PE router.
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