Practice Test Geeks(VDV) Voice Data Video Technician Certified Practice Test
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Video Distribution Flashcards

7 cards from real VDV practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Video Distribution flashcards as text

  1. What is the function of a video matrix switcher in a large distribution system?

    Answer: Route any input to any output in any combination

    A matrix switcher allows any input source to be routed to one or more outputs independently, providing full crosspoint switching flexibility.

  2. What does HDCP stand for in the context of video distribution?

    Answer: High-bandwidth Digital Content Protection

    HDCP (High-bandwidth Digital Content Protection) is a copy-protection scheme that encrypts digital video signals over HDMI, DVI, and DisplayPort connections.

  3. A balun is used in video distribution primarily to accomplish which of the following?

    Answer: Convert 75-ohm coax to twisted-pair transmission

    Video baluns allow analog or digital video to travel over Category cable (twisted pair) by converting the unbalanced coax signal to a balanced differential signal.

  4. In HDMI distribution, what is the maximum cable length generally recommended without a signal booster for standard 1080p?

    Answer: 50 feet

    Passive HDMI cables are typically reliable up to about 50 feet for 1080p; beyond that, active cables or extenders are recommended to maintain signal integrity.

  5. Which technology allows HDMI signals to be extended over Cat5e/Cat6 cable beyond 100 feet?

    Answer: HDBaseT

    HDBaseT is a connectivity standard that transmits uncompressed HD video, audio, power, and control signals over a single Cat5e/Cat6 cable up to 100 meters.

  6. When installing a video distribution system in a building, where should the head-end equipment typically be located?

    Answer: In a central location to minimize cable runs

    Centralizing head-end equipment minimizes total cable length, reduces signal loss, and simplifies maintenance access.

  7. What signal impairment appears as a faint ghost image offset horizontally on an analog video display?

    Answer: Reflection or multipath interference

    Reflections caused by impedance mismatches or unterminated cable stubs cause delayed copies of the signal to appear as ghost images on the display.