CompTIA Security+ (SY0-501) — Question 899

When attempting to secure a mobile workstation, which of the following authentication technologies rely on the user's physical characteristics? (Choose two.)

Answer options

• A. MAC address table
• B. Retina scan
• C. Fingerprint scan
• D. Two-factor authentication
• E. CAPTCHA
• F. Password string

Correct answer: B, C

Explanation

The correct answers are B and C because both retina scans and fingerprint scans authenticate users based on unique physical characteristics. The other options, such as MAC address table, two-factor authentication, CAPTCHA, and password string, do not rely on biometric data for authentication.