Which two statements about PIM snooping are true? (Choose two)
A. It floods join and prune messages on all router ports.
B. It requires designated forwarder election messages.
C. When PIM snooping is enabled, the switch allows all multicast packets for each IP multicast group to send multicast packets to multicast router.
D. It requires RGMP to be enabled on the VLAN.
E. It requires IGMP snooping to be enabled on the switch.
F. The ip pirn snooping command is an interface-level command.
