Discussion

Which of the following is true when describing a multicast address?

A.Packets addressed to a unicast address are delivered to a single interface.
B.Packets are delivered to all interfaces identified by the address. This is also called a one-to-many address.
C.Identifies multiple interfaces and is only delivered to one address. This address can also be called one-to-one-of-many.
D.These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.

Answer: B

Packets addressed to a multicast address are delivered to all interfaces identified by the multicast address, the same as in IPv4. It is also called a one-to-many address. You can always tell a multicast address in IPv6 because multicast addresses always start with FF.

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