A campus deploys SSM for application distribution using groups in 232.0.0.0/8. Which two conditions must be met for native SSM operation without an RP? Choose two.
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Correct answer: Receivers must use IGMPv3 (source-specific reports), Routers must be configured to treat the SSM group range (or use the default SSM range).
Why this is the answer
For native Source-Specific Multicast (SSM) operation, receivers must explicitly request traffic from a specific source and group using IGMPv3. This allows the network to build a shortest-path tree directly from the source to the receiver without needing a Rendezvous Point (RP). Routers must also be configured to recognize the SSM group range (232.0.0.0/8 by default) to ensure they process these requests as SSM. PIM Dense Mode is not required for SSM; SSM typically uses PIM Sparse Mode or PIM Source-Specific Multicast (PIM-SSM), which is a variation of PIM Sparse Mode. An RP is specifically not needed for native SSM because the source is known at the time of the join, eliminating the need for an RP to discover sources.
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