Which technique uses detectors around a high-value target for warning?

• A. Area Array
• B. Critical Node
• C. Nearside-Farside
• D. Box

Answer: (B)

Focusing detectors around a high-value target to create an early warning perimeter is the central idea here. By surrounding the asset itself, the sensing system is tuned to detect any approach or tampering at the very point where it matters most, allowing a quick alert and rapid response before the threat can affect the target. This asset-centric arrangement makes the warning more timely and reliable because the detectors form a protective boundary right at the critical point.

Other approaches either spread sensors over a broader area without prioritizing the asset, or describe concepts that don’t specifically target warning around the most valuable asset. That makes them less effective for guaranteeing early detection at the exact point of greatest risk.