Click the Exhibit button. Referring to the exhibit, a PIM-SM network is set up to enable communication between multicast devices. Which two statements are true? (Choose two.)
A.
Before the formation of the rendezvous-point tree, a join message is sent from R1 to R3.
B.
Before the formation of the rendezvous-point tree, an IGMP is sent from the Receiver to R1.
C.
Before the formation of the rendezvous-point tree, an IGMP is sent from the Source to R5.
D.
Before the formation of the rendezvous-point tree, a join message is sent from R1 to R5.
A n B is correct:
Before the formation of the rendezvous-point (RP) tree, a join message from a receiver is sent to the RP to request to join a multicast group. This join message contains information such as the group address and the interface on which the receiver is listening for multicast traffic.
The IGMP (Internet Group Management Protocol) message is sent by a host on a network to signal its interest in receiving traffic from a particular multicast group. When a receiver wants to join a multicast group, it sends an IGMP message to its local router.
A is correct:
Before the formation of the rendezvous-point (RP) tree, a join message from a receiver is sent to the RP to request to join a multicast group. This join message contains information such as the group address and the interface on which the receiver is listening for multicast traffic.
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