COMPUTER NETWORKING

Detailed explanation-1: -The transport layer. The transport layer is responsible for transferring data across a network and provides error-checking mechanisms and data flow controls. It determines how much data to send, where it gets sent and at what rate. TCP within the TCP/IP suite is the best-known example of the transport layer.

Detailed explanation-2: -The main functions of network layer is to provide end-to-end addressing, routing and to provide a connectionless datagram delivery of packets. One of the main use of this connectionless service is to serve the transport layer above it.

Detailed explanation-3: -Data link layer of the sending machine transmits accepts data from the network layer and sends them to the data link layer of the destination machine which hands them to the network layer there. In actual communication, the data link layer transmits bits via the physical layers and physical medium.