Ways by which Network communications occur

Computers in a network communicate with each other in a variety of ways. They are Unicast communication, Broadcast communication and Multicast communication
Unicast communication: This has to do with one to one communication between computers in a network i.e Pc A can send message to Pc B and vice-verse.
Broadcast communication: Broadcast is the opposite of Unicast. It has to do with sending a message to all the Pc in the network.
Multicast communication: This involves sending a message to a group of computers rather than to all.

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