Which abbreviation stands for Secure File Transfer Protocol?

Which abbreviation stands for Secure File Transfer Protocol?

• A. SFTP
• B. SID
• C. SSL
• D. SMTP

Answer: (A)

Understanding secure file transfer protocols and what SFTP stands for. SFTP stands for Secure File Transfer Protocol, and it is designed specifically for transferring files over a secure channel. It runs over SSH, meaning the entire file transfer session—authentication, commands, and data—is encrypted. This provides confidentiality and integrity for both the credentials used to access the server and the files being transferred. Because it uses SSH, it typically operates on the same port as SSH (port 22) and uses a single, encrypted connection for all file operations, which makes it different from plain FTP (which is unencrypted) and from FTPS (which adds TLS/SSL on top of FTP but is a different protocol family). The other options aren’t file transfer protocols. SID is a Windows security identifier used for access control, SSL is a security protocol for protecting data in transit in general (e.g., web traffic) but not specifically a file transfer protocol, and SMTP is the protocol used to send email.

Understanding secure file transfer protocols and what SFTP stands for. SFTP stands for Secure File Transfer Protocol, and it is designed specifically for transferring files over a secure channel. It runs over SSH, meaning the entire file transfer session—authentication, commands, and data—is encrypted. This provides confidentiality and integrity for both the credentials used to access the server and the files being transferred. Because it uses SSH, it typically operates on the same port as SSH (port 22) and uses a single, encrypted connection for all file operations, which makes it different from plain FTP (which is unencrypted) and from FTPS (which adds TLS/SSL on top of FTP but is a different protocol family).

The other options aren’t file transfer protocols. SID is a Windows security identifier used for access control, SSL is a security protocol for protecting data in transit in general (e.g., web traffic) but not specifically a file transfer protocol, and SMTP is the protocol used to send email.