COMPUTER NETWORKING

Detailed explanation-1: -The network layer is the third layer of the OSI model which provides communication between hosts of different networks. The network layer divides the data received from the transport layer in the form of packets.

Detailed explanation-2: -Information packages at the Transport Layer are called, among other things, “segments.” Protocols that reside at the Transport layer can be connection-oriented or connectionless. Connection-oriented protocols, such as TCP, require and acknowledgement (ACK) of the receipt packet.

Detailed explanation-3: -TCP then divides the data that is received from the application layer into segments and attaches a header to each segment. Segment headers contain sending and receiving ports, segment ordering information, and a data field that is known as a checksum.

Detailed explanation-4: -Devices on a TCP/IP network divide data into small pieces, allowing the network to accommodate various bandwidths, to allow for multiple routes to a destination, and to retransmit the pieces of data which are interrupted or lost. Each piece is a packet, a term interchangeable with datagram.