EDUCATION UGC NET
TEACHING AND RESEARCH APTITUDE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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for large group communication
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only for poor students of the class
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only for a restricted audience residing at a particular place
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None of these
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Detailed explanation-1: -CCTV relies on strategic placement of cameras and private observation of the camera’s input on monitors. The system is called “closed-circuit” because the cameras, monitors and/or video recorders communicate across a proprietary coaxial cable run or wireless communication link.
Detailed explanation-2: -A CCTV system must have: A high resolution camera to ensure image clarity. High-capacity digital storage to ensure 24/7 recording. The right placement with good lighting.
Detailed explanation-3: -So, open circuit TV is a retronym for broadcast TV or commercial cable TV.
Detailed explanation-4: -X ray baggage-inspection devices at airports. Remote viewing of dangerous industrial processes, rocket liftoffs, and other operations. Perimeter security around power plants, military installations, warehouses, police stations, and other defended facilities. More items •08-Jun-2018