CCTV CCTV Installation and Maintenance 3

Question 1

A CCTV installer is asked to cover a parking lot with high-contrast lighting conditions. Which camera feature is most important?

Accepted Answer

Wide Dynamic Range (WDR)

Answer

Wide Dynamic Range (WDR) allows the camera to simultaneously capture detail in both very bright and very dark areas within the same scene.

Question 2

What is 'camera masking' in the context of CCTV privacy compliance?

Accepted Answer

Digitally blocking specific areas of the camera's view

Answer

Privacy masking digitally blacks out specific zones within a camera's field of view to prevent recording of private areas such as neighboring properties.

Question 3

How should a technician test whether a newly installed IP camera is reachable on the network?

Accepted Answer

Ping the camera's IP address from a networked device

Answer

Pinging the camera's assigned IP address confirms basic network connectivity before configuring the NVR or VMS.

Question 4

Which factor most directly determines the maximum distance for a PoE camera connection without a PoE extender?

Accepted Answer

Ethernet cable length limit of 100 meters

Answer

The IEEE 802.3 Ethernet standard limits PoE cable runs to 100 meters (328 feet) before signal and power loss become problematic.

Question 5

A PTZ camera is installed outdoors but keeps losing its preset positions after power cycles. What should the technician check?

Accepted Answer

The camera's firmware and preset memory settings

Answer

Preset positions may not be saved if the camera firmware has a bug or the preset memory setting requires manual save confirmation after configuration.

CCTV - Closed Circuit Television Practice Test

CCTV - Closed Circuit Television Practice Test

CCTV CCTV Installation and Maintenance 3