You are a network technician, study the exhibit carefully. All multilayer switches are running
PIM sparse mode. Host CKB and Host CKF are sending IGMPv2 join messages to their
respective multilayer switches. Which description is correct?

A.
Switches 1, 2, 3, and 6 will participate in the multicast tree once pruning has taken place.

B.
Switches 2 and 6 will participate in the multicast tree once pruning has taken place.

C.
Switches 1, 2, 3, and 6 will participate in the multicast tree.

D.
The multicast server is the rendezvous point of the multicast tree.

Explanation:
The point of this question is multicast tree
The host B and F sent IGMPv2 join message to the last hop switch, which causes the last
hop switch to send join message to RP so that a shared tree is formed. The multicast source
sends register message to RP to form the spt. So multicast tree exists on switches 1, 2,
3and 6.