CompTIA A+ Core 1 (220-1201)HardwareHard
A technician is setting up a new gaming PC. The client wants to connect a high-refresh-rate 4K monitor (3840x2160 pixels at 144Hz) that supports HDR. Which of the following display interfaces would be MOST suitable to meet these requirements?
- ADVI-D Single Link
- BDisplayPort 1.4
- CHDMI 1.4
- DVGA
Show answer & explanationAnswer & explanation
Correct answer: B. DisplayPort 1.4
DisplayPort 1.4 supports 4K resolution at 144Hz with HDR using Display Stream Compression (DSC). VGA and DVI-D Single Link lack the bandwidth for 4K. HDMI 1.4 can do 4K, but only at 30Hz, not 144Hz.
Why the other options are wrong
- A. DVI-D Single Link has a maximum resolution of 1920x1200 at 60Hz, far below 4K 144Hz.
- C. HDMI 1.4 supports 4K resolution but only up to 30Hz, which does not meet the 144Hz requirement.
- D. VGA is an analog interface with insufficient bandwidth for 4K resolution at any refresh rate, let alone 144Hz or HDR.
High-Resolution Display Interfaces
Video connection standards capable of transmitting high-bandwidth signals required for 4K, 8K, and high-refresh-rate monitors, often including HDR support.
- DisplayPort: High bandwidth, common for PC gaming.
- HDMI: Versatile, common for TVs/monitors, newer versions support high bandwidth.
- VGA/DVI: Older, limited bandwidth for modern displays.
- Bandwidth is key for resolution + refresh rate + color depth.
Memory trick: For high-refresh 4K, DisplayPort is the key, HDMI's good, but DP's for the PC.