Practice Test Geeks(CTS) Certified Technology Specialist Practice Test
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AV Signal Flow and Distribution Flashcards

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

Read the first 7 AV Signal Flow and Distribution flashcards as text

  1. In HDBaseT signal distribution, which of the following is NOT carried over a single Cat cable?

    Answer: USB 3.0 SuperSpeed data

    HDBaseT carries video, audio, Ethernet, control signals, and power (PoH), but USB 3.0 SuperSpeed is not part of the HDBaseT specification.

  2. Which term describes the condition where two identical audio signals are combined but one is 180° out of phase, resulting in signal cancellation?

    Answer: Polarity inversion cancellation

    Polarity inversion cancellation (phase cancellation) occurs when identical signals with reversed polarity are summed, causing destructive interference.

  3. A video signal is described as 1080i/60. What does the '60' represent in this context?

    Answer: 60 fields per second (30 frames)

    In interlaced notation, the number refers to fields per second; 1080i/60 delivers 60 fields (odd + even lines alternating), equating to 30 complete frames per second.

  4. A system designer wants to send a 4K HDR signal with Dolby Atmos audio over a network. Which specification must the HDMI cable and switches support?

    Answer: HDMI 2.1

    HDMI 2.1 supports 4K/120Hz, HDR10+, and the Enhanced Audio Return Channel (eARC) required for Dolby Atmos object-based audio.

  5. In a balanced audio line, the shield of the cable is connected to pin 1 of an XLR connector. What is the shield's primary purpose?

    Answer: Reject electromagnetic interference by grounding noise

    The shield surrounds the inner conductors and is grounded to divert induced electromagnetic interference away from the audio signal.

  6. Which display technology characteristic makes it MOST susceptible to interference from strong magnetic fields near the display?

    Answer: CRT (Cathode Ray Tube)

    CRT displays use electron beams steered by magnetic deflection coils, making them highly vulnerable to distortion from external magnetic fields.

  7. A technician must verify that an HDMI signal is being received correctly before it reaches the display. Which tool is BEST suited for this task?

    Answer: HDMI signal analyzer/pattern generator

    An HDMI signal analyzer or pattern generator can inject and decode HDMI test patterns, verify EDID/HDCP handshakes, and measure signal timing parameters.