Which protocol is specifically used for transferring files over the Internet?

File Transfer Protocol (FTP) is specifically designed for transferring files over the Internet. It is a standard network protocol used to move files from one host to another through a TCP-based connection, allowing users to upload, download, delete, and manage files on a remote server. FTP operates on a client-server model, where the client initiates requests to the server to access or manipulate files.

The reason FTP is the correct choice lies in its wide acceptance and implementation for file transfers. It provides a reliable means of transferring large files and supports various authentication methods for secure file exchanges. Over time, FTP has become a fundamental tool in web development, data distribution, and even backup solutions.

While the other options may appear relevant by name, they do not represent known or standardized protocols for transferring files over the Internet. Each is not commonly recognized or utilized in the same way as FTP, which is why FTP stands out as the correct choice for this question.