B (IGMPv3 with PIM-SSM):Source-Specific Multicast (SSM) significantly reduces multicast state in the network by eliminating shared trees and (*,G) state, requiring only (S,G) entries. With IGMPv3 receivers specify both the group and source, which reduces unnecessary group membership and simplifies multicast forwarding state.
Other options explained:
A: IGMP filtering controls receiver access but does not reduce core multicast state.
C: Multiple multicast domains complicate rather than simplify state.
D: Using one multicast group is not scalable or practical for multiple services.
Contribute your Thoughts:
Chosen Answer:
This is a voting comment (?). You can switch to a simple comment. It is better to Upvote an existing comment if you don't have anything to add.
Submit