CompTIA Tech+ (FC0-U71)InfrastructureEasy
A technician is connecting a laptop to an external 4K monitor and wants the single cable to carry both high-resolution video and multi-channel audio while also supporting daisy-chaining multiple monitors. Which port should the technician use?
- ARJ-11
- BDisplayPort
- CVGA
- DPS/2
Show answer & explanationAnswer & explanation
Correct answer: B. DisplayPort
DisplayPort supports high-resolution video, audio, and Multi-Stream Transport (MST), which allows daisy-chaining multiple monitors from a single port. VGA is analog-only video with no audio, PS/2 is for legacy keyboards/mice, and RJ-11 is for telephone lines.
Why the other options are wrong
- A. RJ-11 is used for telephone/modem connections.
- C. VGA is an older analog video-only connector with no audio or daisy-chain support.
- D. PS/2 connects legacy keyboards and mice, not video.
DisplayPort
A digital display interface that carries video and audio and supports connecting multiple monitors via Multi-Stream Transport.
- Supports video and audio in one cable
- Allows daisy-chaining multiple displays
- Common on modern laptops and monitors
Memory trick: 'Display' Port displays it all: video, audio, and daisy-chains.