COMPUTER NETWORKING

Detailed explanation-1: -Computer networks that provide only a connection service at the network layer are called virtual circuit (VC) networks; computer networks that provide only a connectionless service at the network layer are called datagram networks .

Detailed explanation-2: -TCP is a connection-oriented transport protocol designed to provide reliable communications over different network architectures. Similar to its counterpart in the OSI model, TCP implements flow control and error detection algorithms.

Detailed explanation-3: -Virtual Circuit is a connection-oriented service in which there is an implementation of resources like buffers, CPU, bandwidth, etc., used by virtual circuit for a data transfer session. Datagram networks are a type of connectionless service where no such resources are required for data transmission.

Detailed explanation-4: -Virtual – circuit network is a category of packet switching network, where a virtual path is established between the source and the destination systems for data communication to occur.