determines how to break application data into packets that networks can deliver.TCP is a connection-oriented protocol, which means a connection is established and maintained until the applications at each end have finished exchanging messages. The Internet Engineering Task Force (IETF) defines TCP in the Request for Comment (RFC) standards document number 793. Together, TCP and IP are the basic rules that define the internet.

TCP works with the Internet Protocol ( IP), which defines how computers send packets of data to each other. Transmission Control Protocol (TCP) is a standard that defines how to establish and maintain a network conversation by which applications can exchange data. What is Transmission Control Protocol (TCP)?