CCTV Study Guide 2026
Everything you need to pass the CCTV exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CCTV Exam Format at a Glance
📚 CCTV Topics to Study (23)
✍️ Sample CCTV Questions & Answers
1. Which detector is most commonly integrated with CCTV to trigger motion-based recording?
Passive Infrared (PIR) detectors sense heat signatures from moving people and are widely used to trigger CCTV recording when motion is detected in a protected zone.
2. In a modern IP surveillance system, what is the primary function of a PoE switch?
A Power over Ethernet (PoE) switch is a network switch that has Power over Ethernet injection built-in. It is used to connect and power PoE-enabled devices, such as IP cameras, using a single Ethernet cable for both data transmission and electrical power.
3. Which standard defines minimum image quality requirements for CCTV footage used in forensic evidence in the US?
IEC 62676-4 defines image quality requirements and performance criteria for CCTV cameras in surveillance applications, and is referenced by US practitioners for forensic-grade imaging standards.
4. What is 'de-warping' in the context of fisheye CCTV cameras?
De-warping software corrects the circular fisheye distortion by mathematically transforming the image into one or more rectilinear perspective views for easier monitoring.
5. What does 'cable dressing' refer to in a professional CCTV installation?
Cable dressing involves neatly routing, bundling, labeling, and securing cables using ties, clips, or trays to create an organized, professional, and maintainable installation.
6. What does the term 'focal length' refer to in CCTV camera lenses?
Focal length is the distance from the optical center of the lens to the image sensor when focused at infinity, determining the field of view.