Express Learning: Data Communications and Computer Networks

12

Internet Transport Protocols

1. Explain the duties of transport layer.

Ans: The transport layer ensures process-to-process delivery of message. As multiple processes may be running at the same time on the communicating hosts, it is the duty of the transport layer to communicate message from a specific process on sending host to the desired process on the receiving host. It also ensures that the receiving process receives the whole segment in the exact order as it was sent by the sending process. Some other responsibilities of transport layer are as follows:

Segmentation and Reassembly: A message is divided into segments by the transport layer ...