Which file transfer protocol uses SSH to securely transfer files and is known as Secure Copy?

• A. Secure Copy (SCP)
• B. Secure File Transfer Protocol (SFTP)
• C. FTP
• D. TFTP

Answer: (A)

Using SSH to securely transfer files means the data is encrypted and authenticated as it moves between hosts. The protocol that is specifically named Secure Copy matches this description because it is designed to copy files over an SSH connection, providing secure, encrypted transfer from one system to another.

Secure Copy is typically used for quick, straightforward file transfers and relies on SSH for the security layer. While Secure File Transfer Protocol also runs over SSH and offers secure transfers, it provides more features (like directory listings and interactive file management), which isn’t the focus of the description. FTP and TFTP don’t use SSH for security, with FTP risking cleartext credentials and TFTP offering a much simpler, unauthenticated transfer model.