Name three surveillance technologies and their primary purpose.

• A. Drones for patrols, thermal imaging for maintenance, RFID scanners for access.
• B. Satellite imagery for monitoring, facial recognition for crowd control, X-ray scanning for security.
• C. CCTV for monitoring, video analytics for event detection, license plate recognition for access or parking control.
• D. Biometric readers for door access, CCTV for monitoring, facial recognition for area control

Answer: (C)

Three surveillance technologies that fit together well are CCTV cameras for monitoring, video analytics for event detection, and license plate recognition for access or parking control. CCTV provides the eye on the area, giving real‑time or recorded footage to observe what’s happening. Video analytics adds automatic processing to that feed, signaling when predefined events occur—like intrusions, abandoned objects, or unusual motion—so responders aren’t stuck watching constantly. License plate recognition reads vehicle plates and uses that information to grant access or manage parking, making vehicle-based control efficient and automated. This combination covers observation, automatic detection, and vehicle-based access control, which is why it’s the best fit. Other options mix purposes that aren’t as commonly aligned with core surveillance roles—such as using thermal imaging primarily for maintenance, or prioritizing X-ray screening or facial recognition in contexts where their main use differs or is more specialized.