Answer :

The TCP/IP model is favored in network implementations for its practicality and real-world alignment, particularly due to the roles of TCP and IP.

The TCP/IP model is used in actual network implementations due to its practicality and alignment with real network services. Unlike the OSI model, TCP/IP is more commonly implemented in networking as it accurately reflects how networks operate in the real world.

TCP and IP are the two main protocols within the TCP/IP suite. TCP provides reliable data transfer at the Transport layer, while IP handles network addressing and routing at the Network layer.

Network functionality relies on the four layers of the TCP/IP model: Application, Transport, Internetwork, and Network Access, making it a preferred choice for actual network implementations.