Practice Test Geeks(CST) Certified Surveillance Technician Practice Test
← All CST Flashcard Decks

Surveillance Systems Installation Flashcards

7 cards from real CST 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 Systems Installation flashcards as text

  1. What is the function of a video balun in a surveillance system installation?

    Answer: It allows analog video to be transmitted over unshielded twisted pair (UTP) cable instead of coaxial

    A video balun converts the impedance of analog CCTV video signals from 75-ohm coaxial to balanced UTP wiring, enabling transmission over existing Cat5/6 cable infrastructure.

  2. A technician needs to install a camera in a food processing area where equipment is washed down daily with high-pressure water. What minimum IP rating should the camera have?

    Answer: IP69K — dust-tight with protection against high-pressure steam cleaning

    IP69K is the highest water ingress protection rating and is specifically designed for equipment that must withstand high-pressure, high-temperature washdowns common in food processing.

  3. When reviewing a camera placement plan for a retail store, you notice a camera aimed directly at the checkout counter POS terminal screen. What issue does this present?

    Answer: It may capture cardholder PIN entry data, creating a PCI DSS compliance violation

    PCI DSS Requirement 9 prohibits camera placement that could capture PIN entry, so cameras must be positioned to avoid viewing POS terminal keypads.

  4. During an IP camera installation, the camera obtains an APIPA address (169.254.x.x) instead of a valid IP from the DHCP server. What is the most likely cause?

    Answer: The DHCP server did not respond and the camera self-assigned a link-local address

    An APIPA address (169.254.x.x) is automatically assigned when a device cannot reach a DHCP server, indicating a network connectivity or DHCP configuration issue.

  5. What is the purpose of back focus adjustment on a fixed lens security camera?

    Answer: To adjust the physical angle of the lens relative to the image sensor for optimal sharpness

    Back focus adjusts the distance between the lens and the image sensor to achieve sharp focus, especially necessary when changing lenses or after lens substitution.

  6. A technician is installing a multi-camera system with analog HD cameras (HD-TVI) and is selecting a DVR. What specification must match between the cameras and DVR?

    Answer: The HD-TVI format version and resolution must be compatible between cameras and DVR

    HD-TVI is a proprietary analog HD format with multiple versions (1.0, 2.0, 3.0) and resolutions; the DVR must explicitly support the same TVI version and resolution as the cameras.

  7. When installing a camera to monitor a server room door, what field of view angle is ideal for capturing both the door and the face of individuals entering?

    Answer: 25-35 degree narrow angle aimed at the doorway entrance at face height

    A 25-35 degree narrow field of view aimed at face height at the door entrance provides enough pixel density to capture recognizable facial details of individuals entering.