220-801 · Question #879
Which of the following uses a single connector to deliver both video and audio?
The correct answer is D. HDMI. HDMI is the only connector among the choices that carries both video and audio signals over a single cable using one unified connector. DVI and VGA carry only video, and Serial is a general-purpose data interface unrelated to AV output.
Question
Which of the following uses a single connector to deliver both video and audio?
Options
- ADVI
- BSerial
- CVGA
- DHDMI
How the community answered
(39 responses)- B3% (1)
- C3% (1)
- D95% (37)
Why each option
HDMI is the only connector among the choices that carries both video and audio signals over a single cable using one unified connector. DVI and VGA carry only video, and Serial is a general-purpose data interface unrelated to AV output.
DVI connectors carry only video signals in either analog, digital, or dual formats depending on the variant, and have no audio channel in their specification.
Serial (RS-232) is a legacy communication interface used for data transmission between devices such as modems and terminals and has no capability to carry video or audio signals.
VGA is an analog video-only interface that transmits RGB video signals and sync but includes no audio channel in its standard.
HDMI (High-Definition Multimedia Interface) integrates both digital video and multi-channel digital audio into a single 19-pin connector, eliminating the need for a separate audio cable. This design was a deliberate improvement over DVI and VGA, which require a separate audio connection to reproduce sound alongside video output.
Concept tested: HDMI single-connector video and audio delivery
Source: https://www.hdmi.org/spec/hdmi1_4b
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