DATAGRAM
An independent, self-contained unit of data carrying sufficient information to be routed from the source to the destination computer without any reliance on earlier or subsequent exchanges between this source and destination computer and the transporting network, much like a telegram. Datagram service, also called connectionsless service, does not necessarily send or forward datagrams in the same order as recieved. In TCP/IP, the internet protocol(IP) packet ia an example of a datagram.
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