220-801 · Question #566
Which of the following video cable types would be MOST likely to experience gradual, degraded signal quality over a long distance?
The correct answer is C. VGA. VGA (Video Graphics Array) transmits an analog signal, which degrades continuously with cable length due to signal attenuation, interference, and impedance. The longer the cable, the more noticeable the image blurring and color degradation. HDMI, DisplayPort, and DVI-D are…
Question
Which of the following video cable types would be MOST likely to experience gradual, degraded signal quality over a long distance?
Options
- AHDMI
- BDisplayPort
- CVGA
- DDVI
How the community answered
(29 responses)- A3% (1)
- B10% (3)
- C83% (24)
- D3% (1)
Explanation
VGA (Video Graphics Array) transmits an analog signal, which degrades continuously with cable length due to signal attenuation, interference, and impedance. The longer the cable, the more noticeable the image blurring and color degradation. HDMI, DisplayPort, and DVI-D are digital interfaces; digital signals either arrive intact or not at all (a cliff effect), so they do not suffer the same gradual, proportional degradation over distance that an analog signal does.
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