What is the primary goal of perimeter and interior protection?

• A. Detect the burglar before entry is gained
• B. Provide deterrence only
• C. Reduce maintenance costs
• D. Ensure only interior doors are monitored

Answer: (A)

The main idea is to get an early warning of an intruder by watching the boundaries and inside areas, so you can respond before a break-in progresses. Perimeter protection, with sensors on doors, windows, and outdoor access, is designed to spot someone trying to enter and alert you or authorities right away. Deterrence can be a helpful side effect of visible security measures, but it isn’t the primary purpose—early detection is what actually enables a faster response and reduces risk. Maintenance costs or monitoring only interior doors miss the core aim of stopping intruders at the boundary and preventing entry, so they don’t capture the full purpose of perimeter and interior protection.