What is the difference between unicast, multicast, and anycast addresses?
What will be an ideal response?
ANSWER: A unicast address specifies a single node on a network. This differs from a multicast address, which is delivered to all nodes in a targeted, multicast group. An anycast address can identify multiple destinations, with packets delivered to the closest destination. For example, a DNS name server might send a DNS request to a group of DNS servers that have all been assigned the same anycast address. A router handling the request examines routes to all the DNS servers in the group and routes the request to the closest server.
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