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Nokia 4A0-108 Exam - Topic 11 Question 107 Discussion

Actual exam question for Nokia's 4A0-108 exam
Question #: 107
Topic #: 11
[All 4A0-108 Questions]

Refer to the following exhibit.

PIM is using the unicast table for RPF-check and the interface IGP metrics are shown. What will happen when Router B receives the multicast packet on its interface facing Router A?

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Suggested Answer: C

by Edward at Feb 10, 2025, 07:18 PM

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Justa
3 months ago
C is the right answer, it forwards out all interfaces!
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Avery
3 months ago
Definitely B, it should forward to the RP.
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Eveline
3 months ago
Wait, are we sure about that? Seems odd.
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Ciara
4 months ago
Totally agree, that's how RPF works!
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Ocie
4 months ago
RPF-check fails, so the packet gets discarded.
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Dana
4 months ago
I think the answer might be to forward the packet out of all interfaces listed in the (*,239.1.1.1) entry. I just hope I remember the details correctly!
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Peggie
4 months ago
I feel like I’ve seen a similar scenario before. If the RPF-check fails, it should discard the packet, right? But I’m confused about the specifics of the interface metrics.
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Vernice
4 months ago
This question reminds me of a practice one where we had to analyze multicast routing. I think Router B would forward the packet to the RP, but I’m not 100% certain.
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Eleonora
5 months ago
I remember studying RPF-checks, but I'm not completely sure how it applies here. I think it might discard the packet if the check fails?
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Macy
5 months ago
Hmm, this is a good one. I think I've got a handle on multicast routing, so I should be able to work through this step-by-step and arrive at the right answer.
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Dawne
5 months ago
I'm a bit unsure about this one. The RPF-check and routing table entries are key, but I'm not entirely sure how they'll interact in this scenario. I'll need to think it through carefully.
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Carisa
5 months ago
Alright, this seems straightforward. The RPF-check is using the unicast table, and the interface IGP metrics are provided. I'm pretty confident I can determine the correct answer here.
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Ligia
5 months ago
Okay, let's see here. The question is asking what will happen when Router B receives the multicast packet on its interface facing Router A. I think I need to focus on the RPF-check and the routing table entries to figure this out.
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Burma
5 months ago
Hmm, this looks like a tricky multicast routing question. I'll need to carefully consider the RPF-check and the routing table entries to determine the correct behavior.
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Delsie
9 months ago
Wait, is this a multicast party or a unicast showdown? I'm just here for the snacks and the routing table dance moves.
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Geraldo
9 months ago
D) Forward the multicast packet out of all the interfaces in its (192.168.1.1,239.1.1.1) entry's outgoing interface list? Ooh, that's a spicy one! I bet the answer is hidden in the details.
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Bettye
9 months ago
C) Forward the multicast packet out of all the interfaces in its (*,239.1.1.1) entry's outgoing interface list? Hmm, that's an interesting approach, but I'm not sure it's the right answer.
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Izetta
8 months ago
D) Forward the multicast packet out of all the interfaces in its (192.168.1.1,239.1.1.1) entry's outgoing interface list
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Odelia
8 months ago
C) Forward the multicast packet out of all the interfaces in its (*,239.1.1.1) entry's outgoing interface list
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Nieves
8 months ago
B) Forward the multicast packet to Router D (RP) according to its routing table
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Flo
8 months ago
A) Discard the multicast packet as RPF-check fails
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Gilberto
9 months ago
B) Forward the multicast packet to Router D (RP) according to its routing table? Sounds like the safest option, but let's see what the others think.
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Tanesha
9 months ago
User 3: I'm not sure, maybe we should consider the other options as well.
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Gayla
9 months ago
User 2: I agree, forwarding the multicast packet to Router D seems like the safest option.
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Octavio
9 months ago
User 1: I think option B is the best choice.
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Jacqueline
10 months ago
A) Discard the multicast packet as RPF-check fails? That's a bold move, but maybe they're testing our understanding of RPF.
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Jeniffer
8 months ago
C) Forward the multicast packet out of all the interfaces in its (*,239.1.1.1) entry's outgoing interface list
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Elden
9 months ago
B) Forward the multicast packet to Router D (RP) according to its routing table
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Emmett
9 months ago
A) Discard the multicast packet as RPF-check fails
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Fernanda
11 months ago
But the exhibit shows the interface IGP metrics, so I still think it's B.
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Clay
11 months ago
I disagree, I believe the answer is C.
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Fernanda
11 months ago
I think the answer is B.
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