Which protocol is used for secure remote CLI access to network devices?
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Correct answer: SSH.
Why this is the answer
SSH (Secure Shell) is the correct protocol for secure remote CLI access. It encrypts both the authentication credentials and the data transmitted, protecting against eavesdropping and tampering. Telnet is incorrect because it sends data, including passwords, in plain text, making it highly insecure for remote access. HTTP is used for web browsing and is unencrypted, unsuitable for secure device management. HTTPS is the secure version of HTTP, encrypting web traffic, but it's primarily for web-based management interfaces, not direct CLI access. While some devices offer web GUIs over HTTPS, SSH is the standard for secure command-line interaction.
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