With a Multicast Design, Applications Can Send One Copy of Each

Multiple Choice

With a multicast design, applications can send one copy of each packet and address it to the group of computers that want to receive it. This technique addresses packets to a group of receivers rather than to a single receiver, and it depends on the network to forward the packets to only the networks that need to receive them. Which two of these are characteristics of multicast routing?

A) multicast routing uses OSPF.
B) multicast routing uses RPF.
C) In multicast routing, the source of a packet is known.
D) When network topologies change, multicast distribution trees are not rebuilt, but use the original path