Which two statements about PIM snooping are true? (Choose two)

PIM snooping's primary goal is to prevent flooding of PIM control messages by forwarding them only to relevant router ports, not to flood them on all router ports.

PIM snooping monitors PIM control messages, including PIM Hellos and Assert messages, to identify PIM-enabled router ports and the Designated Router (DR). These "designated forwarder election messages" are crucial for the switch to correctly determine which ports are router ports and how to forward PIM control traffic efficiently.

PIM snooping focuses on PIM control messages, not on allowing or disallowing all multicast *data* packets. Multicast data forwarding is managed by IGMP snooping's understanding of receiver memberships.

RGMP (Router-port Group Management Protocol) is an alternative to PIM snooping for router port discovery and is not a prerequisite for PIM snooping.

PIM snooping often works in conjunction with IGMP snooping. IGMP snooping builds the multicast forwarding table based on receiver joins, while PIM snooping identifies router ports and optimizes PIM control message flow, making IGMP snooping a necessary foundation for effective Layer 2 multicast management.

PIM snooping is typically configured globally or on a per-VLAN basis, not on individual interfaces.