Host to host communication is the one which takes place between one host and the other host(computer). IP protocol is used.
Process to Process communication refers to the communication between two processes on the
hosts. UDP protocol is used to deliver the message from the host to the process.
Thus UDP and IP protocols play a major role in the delivery of the message to the particular
process ( the difference being IP delivers the message to the destination host.UDP delivers
the message from the host to the process that is in the host).
ANSWER:
Host to host communication is the one which takes place between one host and the other host(computer). IP protocol is used.
Process to Process communication refers to the communication between two processes on the
hosts. UDP protocol is used to deliver the message from the host to the process.
Thus UDP and IP protocols play a major role in the delivery of the message to the particular
process ( the difference being IP delivers the message to the destination host.UDP delivers
the message from the host to the process that is in the host).