Which protocol enables TCP/IP to interconnect across networks?

Which protocol enables TCP/IP to interconnect across networks?

• A. Transmission Control Protocol (TCP)
• B. User Datagram Protocol (UDP)
• C. Internet Protocol (IP)
• D. Hypertext Transfer Protocol (HTTP)

Answer: (C)

Interconnecting across networks hinges on a protocol that handles addressing and routing of individual packets from one network to another. The Internet Protocol provides the addressing scheme (IP addresses) and the routing logic that moves every packet through routers toward its destination, across local and wide-area networks and the broader Internet. TCP and UDP are transport-layer protocols that run on top of IP and manage how data is delivered once IP has carried the packets; HTTP is an application-layer protocol used for web communications and typically runs over TCP, relying on IP for the actual transport across networks. Because IP performs the essential network-layer task of routing packets between different networks, it enables TCP/IP to interconnect across networks.

Interconnecting across networks hinges on a protocol that handles addressing and routing of individual packets from one network to another. The Internet Protocol provides the addressing scheme (IP addresses) and the routing logic that moves every packet through routers toward its destination, across local and wide-area networks and the broader Internet. TCP and UDP are transport-layer protocols that run on top of IP and manage how data is delivered once IP has carried the packets; HTTP is an application-layer protocol used for web communications and typically runs over TCP, relying on IP for the actual transport across networks. Because IP performs the essential network-layer task of routing packets between different networks, it enables TCP/IP to interconnect across networks.