CPO Security Technology and Equipment 1 — Questions and Answers
Question 1: What does CCTV stand for in security technology?
- Centralized Camera and Television View
- Closed-Circuit Television (Correct answer)
- Controlled Camera Transmission Video
- Continuous Circuit Tracking and Video
Correct answer: Closed-Circuit Television
CCTV stands for Closed-Circuit Television, a system where video signals are transmitted to a limited set of monitors for security surveillance.
Question 2: What is the primary purpose of a passive infrared (PIR) motion detector in a security system?
- To emit infrared beams that detect movement
- To detect changes in infrared radiation emitted by warm bodies (Correct answer)
- To photograph intruders automatically when motion occurs
- To measure ambient temperature and trigger alarms if it rises
Correct answer: To detect changes in infrared radiation emitted by warm bodies
A passive infrared (PIR) sensor detects changes in infrared radiation (heat) emitted by people or animals moving through its field of view.
Question 3: Which type of access control system uses physical characteristics such as fingerprints or retinal scans to verify identity?
- Card-based access control
- PIN-code access control
- Biometric access control (Correct answer)
- Token-based access control
Correct answer: Biometric access control
Biometric access control uses unique physical characteristics — such as fingerprints, retinal patterns, or facial features — to authenticate individuals.
Question 4: What does PTZ stand for in the context of security cameras?
- Proximity, Tracking, and Zoom
- Pan, Tilt, and Zoom (Correct answer)
- Programmable Target Zone
- Point, Track, and Zone
Correct answer: Pan, Tilt, and Zoom
PTZ stands for Pan, Tilt, and Zoom, describing cameras that can be remotely directed horizontally, vertically, and can magnify images.
Question 5: A security officer is monitoring a DVR system. What is the primary advantage of a Digital Video Recorder (DVR) over older analog tape systems?
- DVRs are less expensive to purchase and install
- DVRs allow continuous recording, easier retrieval, and longer storage capacity (Correct answer)
- DVRs transmit footage in real time to law enforcement automatically
- DVRs require no maintenance unlike tape-based systems
Correct answer: DVRs allow continuous recording, easier retrieval, and longer storage capacity
DVRs allow continuous looped recording, rapid search and retrieval of footage, and far greater storage capacity compared to VHS-based analog systems.
Question 6: What is the purpose of an interlock or 'mantrap' in a high-security facility?
- To trap intruders in a room until authorities arrive
- To allow only one person to pass through a controlled area at a time, preventing tailgating (Correct answer)
- To store security equipment in a locked compartment accessible only to supervisors
- To monitor foot traffic using weight sensors embedded in the floor
Correct answer: To allow only one person to pass through a controlled area at a time, preventing tailgating
A mantrap (interlock) is a small enclosed space with two sets of interlocking doors, ensuring only one person can enter the secure area at a time to prevent tailgating or piggybacking.
Question 7: Which of the following best describes 'tailgating' as a security threat related to access control?
- An unauthorized vehicle following a patrol car onto secured grounds
- An unauthorized person following an authorized person through a secured door without using credentials (Correct answer)
- A form of surveillance where a suspect is followed on foot by security personnel
- Connecting unauthorized devices to a secured network port
Correct answer: An unauthorized person following an authorized person through a secured door without using credentials
Tailgating (also called piggybacking) occurs when an unauthorized individual follows closely behind an authorized person to gain access through a controlled entry point without presenting credentials.
CPO Security Technology and Equipment 1
What does CCTV stand for in security technology?