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State the difference between Byte streams and message
Byte streams and message are different. In a message stream, network keeps track of the message boundaries. In a byte stream, it does not keep tracks. For instance, suppose a process writes 1024 bytes to the connection and then a little later writes another 1024 bytes. The receiver then reads 2048 bytes.
With the message stream, receiver will get two messages each of 1024 each. With a byte stream, message boundaries do not count and receiver will get the full 2048 bytes as a single unit. The fact that there were originally two separate messages is lost.
ACK Received If an ACK is received by the sender. The SR sender marks that packet as having been received by the receiver.
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