What protocol is used to securely transmit files over a network?

What protocol is used to securely transmit files over a network?

• A. FTP
• B. HTTP
• C. SFTP
• D. SMTP

Answer: (C)

The protocol used to securely transmit files over a network is SFTP, which stands for Secure File Transfer Protocol. SFTP provides a secure channel for file access, transfer, and management, leveraging the underlying SSH (Secure Shell) protocol to encrypt the data being transmitted. This encryption ensures that any files transferred using SFTP are protected from eavesdropping and unauthorized access, making it a preferred choice for situations where data security is paramount. In contrast to other protocols listed, such as FTP (File Transfer Protocol), which transmits data in plaintext and is vulnerable to interception, SFTP guarantees the confidentiality and integrity of the data. While HTTP (Hypertext Transfer Protocol) is primarily used for transmitting web pages and does not provide security features like encryption, and SMTP (Simple Mail Transfer Protocol) is used for sending emails rather than file transfers, SFTP specifically addresses the need for secure file transmission, making it the correct choice in this context.

The protocol used to securely transmit files over a network is SFTP, which stands for Secure File Transfer Protocol. SFTP provides a secure channel for file access, transfer, and management, leveraging the underlying SSH (Secure Shell) protocol to encrypt the data being transmitted. This encryption ensures that any files transferred using SFTP are protected from eavesdropping and unauthorized access, making it a preferred choice for situations where data security is paramount.

In contrast to other protocols listed, such as FTP (File Transfer Protocol), which transmits data in plaintext and is vulnerable to interception, SFTP guarantees the confidentiality and integrity of the data. While HTTP (Hypertext Transfer Protocol) is primarily used for transmitting web pages and does not provide security features like encryption, and SMTP (Simple Mail Transfer Protocol) is used for sending emails rather than file transfers, SFTP specifically addresses the need for secure file transmission, making it the correct choice in this context.