Which statement about perimeter monitoring is true?

• A. Video surveillance is used to monitor the perimeter
• B. Perimeter monitoring is never done by vehicles
• C. Perimeter monitoring requires no posts or towers
• D. Only foot patrols are used for monitoring

Answer: (A)

Video surveillance provides continuous, real-time view of the perimeter, making it a common and effective method for monitoring. Cameras installed around fences, walls, and gates enable early detection of approach, can be monitored from a control room or remotely, and often record events for later investigation. They work well for covering long or hard-to-patrol areas, can be adjusted for different angles, and can be integrated with motion sensors, alarms, and lighting to deter intruders and speed response. This makes the statement true in most perimeter security setups.

Vehicles are commonly used as part of patrols to respond, reinforce, or visually inspect the perimeter, so saying they are never used is inaccurate. Many perimeter systems also rely on posts or towers to mount cameras and sensors, so the idea that no posts or towers are needed isn’t correct. And while foot patrols are a part of perimeter security, they are not the only method; vehicles and drones often supplement or replace foot patrols for efficiency and coverage.