CompTIA Security+ (SY0-501) — Question 485

Which of the following represents a multifactor authentication system?

Answer options

• A. An iris scanner coupled with a palm print reader and fingerprint scanner with liveness detection.
• B. A secret passcode that prompts the user to enter a secret key if entered correctly.
• C. A digital certificate on a physical token that is unlocked with a secret passcode.
• D. A one-time password token combined with a proximity badge.

Correct answer: D

Explanation

Option D is correct because it includes two different authentication factors: something you have (the one-time password token) and something you are (the proximity badge). The other options either rely on a single factor or do not combine multiple distinct factors effectively.