What are three characteristics of multicast transmission (Choose three.)?

What is Multicast Protocol with diagram?

In computer networking, "multicast" refers to the delivery of data to a group of destination computers simultaneously in a single transmission from the source creating copies automatically in other network elements, such as routers, only when the topology of the network requires it. There are several multicast protocols. RFC 1458 - Requirements for Multicast Protocols attempts to standardize these protocols. Generally the possible routing schemes fall into one of a three main addressing methodologies, unicast addressing, broadcast or multicast addressing, and anycast addressing. Unicast addressing sends data from a single source to a single destination. In anycast addressing datagrams from a single sender are routed to the topologically nearest node in a group of potential receivers all identified by the same destination address. The data has multiple POSSIBLE recipients, but only one recipient winds up getting it. In broadcast and multicast addressing, a single sender sends a single message to multiple recipients simultaneously. Broadcast differs from multicast in that under broadcast, ALL computers on the network get the data while under multicast, only those computers targeted to receive it. For diagrams illustrating this, see the Wikipedia article in the related links.