CompTIA Security+ (SY0-701) — Question 590

When used with an access control vestibule which of the following would provide the best prevention against tailgating?

Answer options

• A. PIN
• B. Access card
• C. Security guard
• D. CCTV

Correct answer: C

Explanation

The correct answer is C, as a security guard can actively monitor and control access, preventing unauthorized individuals from following someone into a secure area. Options A, B, and D can enhance security but do not provide the same level of immediate intervention and deterrence that a security guard offers.