CCTV Cheat Sheet 2026

The 30 highest-yield CCTV facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What advantage does edge-based video analytics (processing on the camera) offer compared to server-based analytics? → Reduced bandwidth and server load since processing occurs locally at the camera
2. What does the term 'field of view' (FOV) refer to in CCTV systems? → The angular extent of the observable area captured by the camera lens
3. Which cybersecurity practice is MOST critical when deploying IP cameras on a network? → Changing default usernames and passwords on every device
4. According to NFPA 70, what determines the type o insulation used on conductors in an installation? → Current of the circuit
5. A 'privacy impact assessment' (PIA) in CCTV deployment is conducted to: → Evaluate potential privacy risks before implementing a surveillance system
6. What is 'scheduled recording' in a DVR/NVR? → Recording that runs only during user-defined time windows
7. Which cable type is preferred for PTZ camera control signals over long distances? → RS-485 twisted pair
8. A technician notices video signal degradation over a long coaxial cable run. Which device should be installed to correct this? → In-line video amplifier
9. Regarding cabling, UTP denotes: → Unshielded twisted pair
10. A CCTV installation requires 90 days of retention for 16 cameras each generating 2 GB/day. What total storage is needed? → 2,880 GB
11. Which IP camera standard defines interoperability between cameras and video management systems from different manufacturers? → ONVIF
12. Which of the following best describes a 'covert' CCTV camera? → A camera disguised or hidden to avoid detection
13. Which camera feature allows automatic horizontal tracking of a moving subject? → Auto tracking PTZ
14. When an operator must take a mandatory break, what is the correct procedure regarding surveillance coverage? → Ensure a qualified relief operator is in place before leaving the monitoring station
15. What is the CCTV control room manager's primary duty? → To follow the Home Office guidance
16. Which US federal law most directly governs the use of video surveillance in the workplace? → The Electronic Communications Privacy Act (ECPA)
17. What is the primary purpose of a CCTV operator maintaining an activity log during a shift? → To document incidents, system faults, and notable events for accountability and review
18. Which industry standard body publishes the Physical Security Professional (PSP) certification relevant to CCTV practitioners? → ASIS International
19. What is 'ONVIF' compliance important for in a multi-vendor CCTV system design? → It provides interoperability between cameras and VMS from different manufacturers
20. A customer wants to access their IP camera system remotely over the internet. Which solution provides the most secure access? → Use a VPN tunnel to the site network
21. What is the purpose of a CCTV system's 'watermarking' feature? → To embed hidden data into video to verify authenticity and detect tampering
22. The term 'chilling effect' in the context of CCTV surveillance refers to: → People altering lawful behavior because they feel they are being watched
23. It appears that a number of workers in a CCTV control room are experiencing stress. Which one of these could aid in lessening these effects? → Maintaining a positive attitude
24. What does PTZ stand for in CCTV terminology? → Pan, Tilt, Zoom
25. Which type of CCTV housing is rated for outdoor use and protects against weather, dust, and moisture? → IP66-rated enclosure
26. Which scenario represents an ethical violation by a CCTV operator? → Tracking a specific customer's movements throughout a store based on personal curiosity
27. There are two types of GSM and CDMA: → Cellular networks
28. What is infrared (IR) cut filter used for in a day/night CCTV camera? → To remove IR light during daytime to improve color accuracy
29. What is meant by 'frame rate' in CCTV video recording? → The number of individual images captured and displayed per second, measured in fps
30. What is the recommended maximum cable run for Cat6 Ethernet in an IP camera installation without a repeater? → 100 meters