What is the name of the protocol suite used on the Internet?

The protocol suite used on the Internet is known as TCP/IP, which stands for Transmission Control Protocol/Internet Protocol. This suite is fundamental as it outlines the standards for data transmission across networks, ensuring that different devices can communicate effectively regardless of their underlying hardware and software configurations. TCP/IP encompasses various protocols that govern various aspects of network communication, including how data packets are transmitted, addressed, and routed, which enables the vast array of services and applications that we use on the Internet today.

The reason this option stands out is due to its comprehensive nature. While HTTP, FTP, and SMTP are all protocols that operate within the TCP/IP suite, they serve more specific functions. HTTP (Hypertext Transfer Protocol) is used for transferring web pages, FTP (File Transfer Protocol) is used for file transfers, and SMTP (Simple Mail Transfer Protocol) is focused on sending emails. Each of these protocols relies on the broader framework provided by TCP/IP to function properly, thus underscoring its role as the foundational suite for Internet communication.