When a router receives a multicast packet, which action will it perform first?
A) The router will determine if it is the DR for that segment
B) The PIM source group database will be checked for the matching group
C) A PIM Assert message will be sent to the RP
D) An RPF check will be performed on the packet
E) An IGMP join will be sent to the source

Question

Quizplus · Accepted Answer

The router will first perform a Reverse Path Forwarding (RPF) check to ensure the packet is received on the correct interface, which is essential for preventing loops in multicast routing.

When a Router Receives a Multicast Packet, Which Action Will