CST Maintenance and Troubleshooting

Question 1

What is the first step in troubleshooting a surveillance system malfunction?

Accepted Answer

Identify and isolate the issue.

Answer

The first step in troubleshooting any surveillance system malfunction is to identify and isolate the issue. This systematic approach helps pinpoint the exact problem component or area, preventing unnecessary actions and guiding the technician towards an efficient and targeted solution.

Question 2

Which tool is commonly used for testing the power supply of surveillance cameras?

Accepted Answer

Multimeter.

Answer

A multimeter is a versatile electronic measuring instrument commonly used for testing the power supply of surveillance cameras. It allows technicians to accurately measure voltage, current, and resistance, ensuring that the camera is receiving the correct power specifications required for its operation.

Question 3

What should be done if a surveillance camera shows a blank screen?

Accepted Answer

Check the power supply, connections, and configuration.

Answer

If a surveillance camera shows a blank screen, the most logical first steps are to check the power supply, connections, and configuration. A blank screen often indicates a fundamental issue like no power, a disconnected cable, or incorrect settings preventing the video signal from being transmitted or displayed.

Question 4

How can you identify a faulty camera lens in a surveillance system?

Accepted Answer

By inspecting the image quality and clarity.

Answer

A faulty camera lens directly impacts the quality of the captured image. Therefore, you can identify a faulty lens by carefully inspecting the image quality and clarity for issues like blurriness, distortion, lack of focus, or visible aberrations that cannot be resolved through adjustments.

Question 5

What does it mean if the network video recorder (NVR) is showing an error message?

Accepted Answer

There is a configuration or network issue.

Answer

If a network video recorder (NVR) is showing an error message, it typically indicates a configuration or network issue. This could involve incorrect network settings, IP conflicts, storage drive problems, or software configuration errors that prevent the NVR from operating correctly or communicating with cameras.

(CST) Certified Surveillance Technician Practice Test

(CST) Certified Surveillance Technician Practice Test

CST Maintenance and Troubleshooting