Which protocol is primarily used for remote login to servers?

Which protocol is primarily used for remote login to servers?

• A. FTP
• B. SSH
• C. HTTP
• D. Telnet

Answer: (B)

The primary protocol used for remote login to servers is SSH (Secure Shell). SSH provides a secure channel over an unsecured network, allowing users to access and manage devices securely. It utilizes encryption for both the connection and the data being transmitted, protecting against eavesdropping and man-in-the-middle attacks. This makes it the preferred choice for remote login, especially in environments where security is a priority. While Telnet also allows remote login, it transmits data in plain text, which poses significant security risks as sensitive information, such as passwords, can easily be intercepted. FTP (File Transfer Protocol) is designed for file transfers rather than remote logins, and HTTP (Hypertext Transfer Protocol) is primarily used for web traffic. Therefore, SSH stands out as the most appropriate and secure protocol for remote access to servers.

The primary protocol used for remote login to servers is SSH (Secure Shell). SSH provides a secure channel over an unsecured network, allowing users to access and manage devices securely. It utilizes encryption for both the connection and the data being transmitted, protecting against eavesdropping and man-in-the-middle attacks. This makes it the preferred choice for remote login, especially in environments where security is a priority.

While Telnet also allows remote login, it transmits data in plain text, which poses significant security risks as sensitive information, such as passwords, can easily be intercepted. FTP (File Transfer Protocol) is designed for file transfers rather than remote logins, and HTTP (Hypertext Transfer Protocol) is primarily used for web traffic. Therefore, SSH stands out as the most appropriate and secure protocol for remote access to servers.