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Question 238 - PCNSE discussion

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A network security engineer configured IP multicast in the virtual router to support a new application. Users in different network segments are reporting that they are unable to access the application.

What must be enabled to allow an interface to forward multicast traffic?

A.
IGMP
Answers
A.
IGMP
B.
PIM
Answers
B.
PIM
C.
BFD
Answers
C.
BFD
D.
SSM
Answers
D.
SSM
Suggested answer: B

Explanation:

A protocol that enables routers to forward multicast traffic efficiently based on the source and destination addresses. PIM can operate in two modes: sparse mode (PIM-SM) or dense mode (PIMDM).

PIM-SM uses a rendezvous point (RP) as a central point for distributing multicast traffic, while PIM-DM uses flooding and pruning techniques2. to enable PIM on the interface which allows routers to forward multicast traffic using either sparse mode or dense mode depending on your network topology and requirements.

asked 23/09/2024
Arkadiusz Skopinski
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