Question : unicast, broadcast and multicast.

please explain what is Explain unicast, broadcast and multicast.

Answer : unicast, broadcast and multicast.

My simple terms:

Unicast - sending data to a single specific host using that hosts IP address.  Data is going to one host only.

Broadcast - sending data to an IP address that is the broadcast address for either a specific IP subnet or for all IP subnets (255.255.255.255).  Data is going to either all hosts on an IP subnet or all hosts on the physical network segment.

Multicast - sending data to a specific IP address that is multiple computers are listening on.  Data is going to multiple hosts.