Revision paper

What is one of the key evidence collection component of a CCTV system?

• Camera lenses

• Lighting devices

• Recording devices.

• Wireless transmission systems

What is the definition of field of view (FOV) in the context of selecting a camera?

• The brightness or darkness of an image

• The number of pixels that make up an image

• The area of coverage and degree of detail visible in a camera's image

• The distance between the camera and the subject being photographed

How many frames per second does the PAL standard support?

• 25 frames per second

• 30 frames per second

• 50 frames per second

• 75 frames per second

What device is used to digitize and compress the video from analogue cameras in a network video system?

• Network switch

• Video encoder

• Cable

• Video management software

Which one of the following surveillance cameras is most suitable for low light environment?

• Fixed camera

• Infrared camera

• Pan Tilt  camera

• Thermal camera

Which of the following is a key component of a CCTV wireless system?

• Cameras

• Lenses

• Access Point

• Recording devices

What system is the initial step in converting an analog video signal from an analog camera to digital format?

• Video encorder based Network Video System.

• Network camera based Network Video System.

• Network digital video record based analogue CCTV System.

• Video Cassette Recorder (VCR) based analogue CCTV System.

Which image scanning techniques is suitable for fast-moving objects?

• Interlaced scanning

• Analog scanning

• Digital scanning

• Progressive scanning

How do Neutral Density (ND) filters affect the color of light captured by the camera and lens?

• ND filters increase the brightness and vibrancy of colors in the image

• ND filters decrease the brightness and vibrancy of colors in the image

• ND filters completely eliminate colors from the image

• ND filters do not alter the color of light captured by the camera and lens

What is LUX, in the context of surveillance systems?

• A measure of distance between a camera and its target

• A measure of the amount of light cast by one candle at one meter space

• A measure of the amount of heat generated by a light source

• A measure of the resolution of a camera image.