CSM CSM Security Technology & Surveillance Systems 1 — Questions and Answers
Question 1: Which CCTV camera type is BEST suited for monitoring a large open parking lot that requires wide-area coverage?
- Fixed dome camera
- Pan-Tilt-Zoom (PTZ) camera (Correct answer)
- Pinhole covert camera
- Infrared bullet camera
Correct answer: Pan-Tilt-Zoom (PTZ) camera
PTZ cameras can be remotely directed and zoomed to cover large areas and track moving subjects, making them ideal for expansive open spaces like parking lots.
Question 2: In a video surveillance system, what is the primary function of a Video Management System (VMS)?
- To physically install and mount cameras
- To centrally record, manage, and retrieve video from multiple cameras (Correct answer)
- To transmit alarm signals to law enforcement
- To generate visitor badges
Correct answer: To centrally record, manage, and retrieve video from multiple cameras
A VMS provides centralized recording, live monitoring, search, and playback of video from multiple cameras across a facility or enterprise.
Question 3: What is the minimum video retention period most commonly recommended by security standards for high-security facilities?
- 24 hours
- 7 days
- 30 days (Correct answer)
- 90 days
Correct answer: 30 days
30 days of video retention is a widely recommended baseline for high-security environments, ensuring footage is available for post-incident investigations.
Question 4: An intrusion detection system (IDS) generates a 'false positive.' This means:
- A real intrusion was not detected
- An alarm was triggered when no actual intrusion occurred (Correct answer)
- The system failed to power on
- A camera lost connectivity
Correct answer: An alarm was triggered when no actual intrusion occurred
A false positive occurs when the system triggers an alarm in the absence of an actual threat, wasting response resources and potentially causing alarm fatigue.
Question 5: Which type of motion detector uses microwave energy to detect movement within a protected area?
- Passive infrared (PIR) sensor
- Microwave sensor (Correct answer)
- Glass break detector
- Vibration sensor
Correct answer: Microwave sensor
Microwave sensors emit microwave pulses and detect movement by measuring changes in the reflected signal, and can penetrate non-metallic objects unlike PIR sensors.
Question 6: A dual-technology motion detector combines PIR and microwave sensing primarily to:
- Reduce installation costs
- Reduce false alarms by requiring both technologies to trigger simultaneously (Correct answer)
- Extend wireless range
- Replace the need for CCTV cameras
Correct answer: Reduce false alarms by requiring both technologies to trigger simultaneously
Requiring both PIR and microwave sensors to trigger simultaneously reduces false alarms, since environmental factors that fool one sensor rarely fool both at the same time.
CSM CSM Security Technology & Surveillance Systems 1
Which CCTV camera type is BEST suited for monitoring a large open parking lot that requires wide-area coverage?