TCP/IP is formed by combining which two protocols?

• A. Hypertext Transfer Protocol and Internet Protocol
• B. File Transfer Protocol and Internet Protocol
• C. Transmission Control Protocol and Internet Protocol
• D. Transmission Control Protocol and User Datagram Protocol

Answer: (C)

The main idea is that TCP/IP is built from two core protocols: the Transport Control Protocol and the Internet Protocol. The Internet Protocol handles addressing and routing, delivering packets from the source to the destination across networks. The Transport Control Protocol sits on top of IP and provides reliable, connection-oriented data transfer, including error checking, sequencing, and flow control. Together, they form the fundamental pairing that defines the TCP/IP suite used on networks and the Internet. The other options mix in application-layer protocols like HTTP or FTP, which rely on TCP/IP but aren’t the foundational pairing, or replace TCP with UDP, which is a different transport protocol that works with IP but isn’t the standard TCP/IP pairing.