Surveillance & Monitoring Systems Flashcards
7 cards from real CSC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Surveillance & Monitoring Systems flashcards as text
A security consultant is evaluating a facility's perimeter surveillance. Which combination BEST provides layered detection coverage?
Answer: CCTV cameras paired with video analytics and perimeter intrusion detection sensors
Layered surveillance combines passive video capture with active analytics and complementary sensor technologies, reducing false negatives and enabling faster response.
What distinguishes a Network Video Recorder (NVR) from a Digital Video Recorder (DVR) in surveillance architecture?
Answer: NVRs process and record IP camera streams over a network; DVRs encode analog signals locally
An NVR receives pre-encoded IP video streams over a network switch, while a DVR digitizes raw analog signals from cameras connected directly via coaxial cable.
Under what circumstance is covert surveillance of employees in a US workplace generally considered unlawful?
Answer: When surveillance extends to areas with a reasonable expectation of privacy, such as restrooms
US law broadly prohibits video surveillance in locations where individuals have a reasonable expectation of privacy, including restrooms, locker rooms, and changing areas.
What is the MAIN purpose of a 'dead zone' analysis in a CCTV system design?
Answer: To locate areas not covered by any camera that could be exploited by an intruder
A dead zone analysis maps uncovered areas in a camera layout so the designer can add cameras, adjust angles, or accept documented risk for those gaps.
Which environmental rating indicates that a surveillance camera housing can withstand dust ingress and water jets from any direction?
Answer: IP66
IP66 indicates total protection against dust ingress (6) and protection against powerful water jets from any direction (6), making it suitable for harsh outdoor environments.
A consultant notices that surveillance camera footage is being transmitted unencrypted across the corporate LAN. What is the PRIMARY risk?
Answer: An insider or network attacker can intercept and view or manipulate the live video stream
Unencrypted video streams on a LAN are vulnerable to packet sniffing, allowing unauthorized personnel to view sensitive surveillance footage or inject false video.
What role does 'metadata' play in advanced video surveillance systems?
Answer: It provides searchable data attributes about objects and events extracted from video, enabling fast retrieval
Metadata from video analytics (e.g., object type, color, direction, timestamp) enables forensic investigators to search hours of footage for specific events in seconds.