Which remote management protocol provides encrypted communication, preferred over unencrypted alternatives?

Which remote management protocol provides encrypted communication, preferred over unencrypted alternatives?

• A. telnet
• B. ftp
• C. http
• D. ssh

Answer: (D)

Encrypted communication in remote management is provided by SSH. It creates a secure, encrypted channel between your client and the remote system, so login credentials and commands cannot be read or tampered with as they travel over the network. SSH also supports strong authentication methods, including public-key authentication, which helps ensure you’re connecting to the right device. Telnet, in contrast, sends everything in cleartext, so usernames, passwords, and commands can be intercepted by anyone monitoring the network. FTP can also send credentials in cleartext unless you’re using secure variants like FTPS or SFTP. HTTP is not designed for secure remote management by itself and transmits data unencrypted unless you use HTTPS, which is HTTP layered over TLS. Because SSH provides encryption by default and is specifically designed for secure remote access, it is the best choice for encrypted remote management.

Encrypted communication in remote management is provided by SSH. It creates a secure, encrypted channel between your client and the remote system, so login credentials and commands cannot be read or tampered with as they travel over the network. SSH also supports strong authentication methods, including public-key authentication, which helps ensure you’re connecting to the right device.

Telnet, in contrast, sends everything in cleartext, so usernames, passwords, and commands can be intercepted by anyone monitoring the network. FTP can also send credentials in cleartext unless you’re using secure variants like FTPS or SFTP. HTTP is not designed for secure remote management by itself and transmits data unencrypted unless you use HTTPS, which is HTTP layered over TLS.

Because SSH provides encryption by default and is specifically designed for secure remote access, it is the best choice for encrypted remote management.