FC0-U71 Infrastructure Practice Question
Which of the following Wi-Fi standards operates on the 5 GHz band and provides the fastest theoretical speeds?
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
✓
802.11ax
802.11ax (Wi-Fi 6) supports both 2.4 and 5 GHz and offers higher throughput than earlier standards.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
802.11g
Why it's wrong here
802.11g operates on 2.4 GHz at up to 54 Mbps.
- ✓
802.11ax
Why this is correct
802.11ax (Wi-Fi 6) offers the fastest speeds and operates on 5 GHz.
- ✗
802.11ac
Why it's wrong here
802.11ac operates on 5 GHz but is slower than 802.11ax.
- ✗
802.11n
Why it's wrong here
802.11n can use both bands but is slower than 802.11ax.
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Same concept, more angles
2 more ways 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. Which wireless standard operates on both 2.4 GHz and 5 GHz bands, providing faster speeds and better performance in crowded environments compared to its predecessor?
easy- A.802.11n
- B.802.11g
- ✓ C.802.11ax
- D.802.11ac
Why C: 802.11ax (Wi-Fi 6) operates on both bands, offers higher data rates, and handles multiple devices efficiently. It is the latest mainstream standard.
Variation 2. Which wireless standard is commonly known as Wi-Fi 5 and operates on the 5 GHz band?
medium- A.802.11ax
- B.802.11g
- C.802.11n
- ✓ D.802.11ac
Why D: 802.11ac (Wi-Fi 5) operates on 5 GHz and offers faster speeds than previous standards. Wi-Fi 6 is 802.11ax.
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.