FC0-U71 Infrastructure Practice Question
A user wants to connect an external monitor to their laptop. The monitor supports a resolution of 3840x2160 at 60Hz. Which of the following ports on the laptop would be BEST suited for this display?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
DisplayPort
DisplayPort can support 4K at 60Hz. HDMI 1.4 supports 4K at 30Hz, while HDMI 2.0 and Thunderbolt can also work, but DisplayPort is a common and reliable choice.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
USB 3.0 Type-A
Why it's wrong here
USB 3.0 Type-A is not designed for video output without additional adapters.
- ✓
DisplayPort
Why this is correct
DisplayPort supports 4K at 60Hz and higher.
- ✗
VGA
Why it's wrong here
VGA transmits an analogue video signal, which cannot carry the digital data required for a 3840x2160 resolution at 60Hz; the maximum supported resolution for VGA is typically 1920x1080 at 60Hz. It is tempting because VGA is a legacy port still found on older laptops for connecting projectors or secondary monitors at standard resolutions, and would be the correct choice for a 1024x768 display.
- ✗
HDMI 1.4
Why it's wrong here
HDMI 1.4 supports 4K at only 30Hz, not 60Hz.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.