Which of the following protocols would operate at the Internet Layer of the TCP/IP model?

The Internet Layer of the TCP/IP model is responsible for routing packets across network boundaries, making it essential for the delivery of data over different network segments. It defines the addressing and routing of data, facilitating communication between devices across multiple networks.

IP, or Internet Protocol, is the primary protocol that operates at this layer. It is responsible for packet forwarding, which includes the addressing of packets to ensure they reach their intended destination. IP routes data from the source to the destination through various networks, using IP addresses to determine the best path.

In contrast, the other protocols listed serve different layers in the TCP/IP protocol suite. HTTP (Hypertext Transfer Protocol) and FTP (File Transfer Protocol) operate at the Application Layer, which deals with user interface and user services for applications. TCP (Transmission Control Protocol) functions at the Transport Layer, providing end-to-end communication services for applications by establishing a connection and ensuring the reliable delivery of data. This distinction defines the specific roles and operations of each protocol within the TCP/IP model.