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Cisco 350-501 Exam - Topic 1 Question 121 Discussion

A network engineer must enable multicast on the network to support a new series of webcasts. The PIM protocol has been enabled on the LAN side, with PIM and MSDP capabilities on edge router R1. The multicast source has been configured with IP address FF3A:121, and IP protocol 58 has been enabled and successfully tested in the network. Due to the limitations of some devices on the network, the data flow should take the most efficient path.Which task must the engineer perform to achieve the goal?
D) Enable PIM-SSM across the network.
A) Enable PIM BSR on R1.
B) Implement Anycast RP on R1.
C) Implement PIM-SM in the LAN.

Cisco 350-501 Exam - Topic 1 Question 121 Discussion

Actual exam question for Cisco's 350-501 exam
Question #: 121
Topic #: 1
[All 350-501 Questions]

A network engineer must enable multicast on the network to support a new series of webcasts. The PIM protocol has been enabled on the LAN side, with PIM and MSDP capabilities on edge router R1. The multicast source has been configured with IP address FF3A:121, and IP protocol 58 has been enabled and successfully tested in the network. Due to the limitations of some devices on the network, the data flow should take the most efficient path.

Which task must the engineer perform to achieve the goal?

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Suggested Answer: D

by Nana at Jan 05, 2026, 05:16 AM

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Ernie
4 months ago
I agree with PIM-SSM. It reduces unnecessary traffic on the network.
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Georgene
4 months ago
PIM-SM could work, but it might not be the most efficient path.
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Terry
5 months ago
I’m leaning towards PIM BSR. It helps with scalability in multicast.
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Marg
5 months ago
I think enabling PIM-SSM is the best option. It’s efficient for one-to-many traffic.
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Theodora
5 months ago
FF3A:121? That's a weird multicast address, right?
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Leatha
5 months ago
Definitely need to go with PIM-SM for multicast.
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Muriel
5 months ago
Wait, isn't Anycast RP more efficient for this?
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Rory
5 months ago
I think enabling PIM-SSM is the way to go here.
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Deeanna
6 months ago
PIM and MSDP are set up on R1, that's good.
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Sharee
6 months ago
Enabling PIM-SSM? That's like trying to put a square peg in a round hole. The answer is clearly B.
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Yaeko
6 months ago
B. Anycast RP is the way to go. It's like having a backup RP, which is perfect for this scenario.
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Dean
7 months ago
C. PIM-SM in the LAN is the obvious choice here. It's the standard multicast protocol for enterprise networks.
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Earlean
7 months ago
D. Enabling PIM-SSM across the network is the way to go. It's the most scalable and flexible multicast solution.
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Arlette
7 months ago
I think the answer is B. Implementing Anycast RP on R1 seems like the most efficient way to handle the multicast requirements.
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Virgilio
7 months ago
I’m leaning towards Anycast RP on R1, but I’m not confident. I need to double-check how it interacts with multicast traffic in this scenario.
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Gail
7 months ago
Implementing PIM-SM in the LAN sounds familiar, but I feel like it might not be the most efficient option given the context of the question.
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Derick
7 months ago
I remember practicing a question about PIM BSR, but I don't think that's what we need here. It seems more related to routing rather than multicast efficiency.
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Annice
8 months ago
I think enabling PIM-SSM across the network might be the right choice since it focuses on efficient data flow, but I'm not entirely sure.
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Quentin
8 months ago
The key here is that we need to support the limitations of some devices on the network. I'm leaning towards implementing Anycast RP on R1.
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Aliza
8 months ago
I'm a bit confused on the differences between PIM-SM and PIM-SSM. I'll need to review those protocols before deciding.
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Leonor
8 months ago
Okay, I think I know the answer here. We need to enable PIM-SSM across the network to support the most efficient data flow.
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Gwenn
8 months ago
Hmm, this seems like a tricky one. I'll need to think through the different multicast protocols and how they work.
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Annamae
2 months ago
PIM-SM might be more efficient for the LAN setup.
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Johnetta
4 months ago
But what about implementing Anycast RP?
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Elouise
4 months ago
I think enabling PIM-SSM is the way to go.
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