Question discussion

Which of the following is true when describing an anycast address?

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APackets addressed to a unicast address are delivered to a single interface.
BPackets are delivered to all interfaces identified by the address. This is also called one-to-many addresses.
CThis address identifies multiple interfaces and the anycast packet is only delivered to one address. This address can also be called one-to-one-of-many.
DThese addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.

Correct answer: C

Discussion 1

CCommunity11 Jun 2021

This address identifies multiple interfaces and the anycast packet is only delivered to one address. This address can also be called one-to-one-of-many.

Anycast addresses identify multiple interfaces, which is the same as multicast; however, the big difference is that the anycast packet is only delivered to one address, the first one it finds defined in the terms of routing distance. This address can also be called one-to-one-of-many.