CERTIFIED-IN-CYBERSECURITY · Question #747
Which of the following is a common type of network protocol used for secure communication over the internet?
The correct answer is D. SSH. SSH (Secure Shell) is a cryptographic network protocol that provides secure, encrypted communication over an unsecured network - commonly used for remote server administration, secure file transfers (SFTP/SCP), and tunneling. The other options are inherently insecure: HTTP (B)…
Question
Which of the following is a common type of network protocol used for secure communication over the internet?
Options
- AFTP
- BHTTP
- CTelnet
- DSSH
How the community answered
(38 responses)- A5% (2)
- B3% (1)
- C3% (1)
- D89% (34)
Explanation
SSH (Secure Shell) is a cryptographic network protocol that provides secure, encrypted communication over an unsecured network - commonly used for remote server administration, secure file transfers (SFTP/SCP), and tunneling. The other options are inherently insecure: HTTP (B) transmits data in plaintext (HTTPS adds TLS for security, but plain HTTP does not). FTP (A) transfers files in cleartext with no encryption. Telnet (C) is the predecessor to SSH - it transmits all data including credentials in plaintext and is considered obsolete for secure use. SSH replaced Telnet precisely because of its encryption and authentication capabilities.
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