CISSP – Information Systems Security Architecture Professional (ISSAP) — Question 2

Which of the following protocols uses public-key cryptography to authenticate the remote computer?

Answer options

• A. SSH
• B. Telnet
• C. SCP
• D. SSL

Correct answer: A

Explanation

SSH is the correct answer because it utilizes public-key cryptography to authenticate the remote computer, ensuring secure connections. Telnet does not provide encryption or authentication, SCP relies on SSH for its security, and SSL primarily focuses on securing communications over networks but does not authenticate a remote computer independently.