220-1101 Question 215
Single answerConnector typesA technician is installing a new digital projector in a conference room. The projector supports audio and video over a single cable, and the company wants to use the same connector type with existing laptops and docking stations whenever possible. One older laptop in the room only has a Mini DisplayPort output. Which connector should the technician use on the projector side to best meet the requirement?
- A
HDMI
- B
DVI-D
- C
VGA
- D
BNC
Show answer and explanation
Correct answer: A
Explanation
The best answer is HDMI because the scenario specifically requires both audio and video over one cable and broad compatibility with laptops and docking stations. In A+ Core 1, candidates are expected to distinguish between common display connector types and their capabilities. HDMI is a standard digital multimedia connector designed to carry both video and audio. By contrast, DVI-D is digital but generally used for video only in PC environments, VGA is analog and video only, and BNC is not the appropriate connector for this use case. From a practical support perspective, HDMI is also commonly available on projectors and can often be used with adapters from Mini DisplayPort, helping the technician support mixed hardware in a real-world conference room deployment.
- A. Correct.
Correct. HDMI carries digital video and audio over a single cable and is widely supported on projectors, laptops, and docking stations. Mini DisplayPort can commonly be adapted to HDMI for compatibility with older laptops, making HDMI the best fit for the stated requirement.
- B. Incorrect.
Incorrect. DVI-D carries digital video but typically does not carry audio in standard PC display deployments. A candidate might choose this because it is a digital connector, but it does not satisfy the requirement to carry both audio and video over one cable.
- C. Incorrect.
Incorrect. VGA is an analog video-only connector and does not carry audio. This is a common distractor because many projectors still include VGA ports for legacy support, but it does not meet the single-cable audio/video requirement.
- D. Incorrect.
Incorrect. BNC connectors are used in specialized video, RF, and networking/coax applications, not as the standard single-cable audio/video laptop-to-projector connection in a modern conference room. Someone might pick this by confusing it with older video connector types.