FC0-U71 Infrastructure Practice Question
A user is trying to connect a laptop to a high-definition monitor that supports 4K resolution at 60Hz. Which of the following ports on the laptop will support this video output?
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
✓
HDMI
DisplayPort and HDMI 2.0+ support 4K@60Hz. USB-A and Thunderbolt 3/4 can also carry video, but USB-A alone does not. Among the options, HDMI is the most common and correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
HDMI
Why this is correct
HDMI supports 4K@60Hz.
- ✗
Ethernet RJ45
Why it's wrong here
Ethernet is for networking, not video.
- ✗
3.5mm audio jack
Why it's wrong here
This is for audio only.
- ✗
USB-A 3.0
Why it's wrong here
USB-A 3.0 does not natively support video output.
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Same concept, more angles
1 more way this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. 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?
medium- A.USB 3.0 Type-A
- ✓ B.DisplayPort
- C.VGA
- D.HDMI 1.4
Why B: 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.
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.