CompTIA Security+ (SY0-701) — Question 350

Which of the following is a preventive physical security control?

Answer options

• A. Video surveillance system
• B. Bollards
• C. Alarm system
• D. Motion sensors

Correct answer: B

Explanation

Bollards are physical barriers designed to prevent vehicles from entering restricted areas, making them a preventive security control. While video surveillance systems, alarm systems, and motion sensors are important for detection and response, they do not actively prevent access in the same way that bollards do.