Review Questions

1:	What is the difference between unicast, broadcast, and multicast?
2:	What are the different modes of PIM?
3:	What mechanism does PIM dense mode operate on?
4:	What mechanism does PIM sparse mode operate on?
5:	What is the difference between IGMP version 1 and version 2 concerning the group leave mechanism?
6:	What multicast address does IGMP use for IGMP queries?
7:	How does RPF check work?
8:	What is the rendezvous point (RP)?