FC0-U71 Infrastructure Practice Question
A technician is setting up a new wireless router for a home office. The user wants to ensure that devices can connect using the latest standard for better speed and reduced interference. Which wireless standard should the technician configure the router to use?
⚠ Common exam trap
The trap here is selecting a familiar but older standard like 802.11ac instead of the latest 802.11ax when the goal is current performance.
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, or Wi-Fi 6, is the latest mainstream wireless standard, offering improved speed, efficiency, and reduced interference compared to older standards. It is designed for environments with many devices and provides better performance. Configuring the router to use 802.11ax ensures the home office benefits from current wireless technology.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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802.11n
Why it's wrong here
802.11n (Wi-Fi 4) operates on both 2.4 GHz and 5 GHz but is older and slower than newer standards. It does not offer the latest improvements in speed and interference reduction. While widely compatible, it is not the best choice for a new setup aiming for current performance.
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802.11g
Why it's wrong here
802.11g is an older standard operating only on 2.4 GHz with limited speeds. It is highly susceptible to interference and is not suitable for a new setup requiring modern performance. It lacks the advancements of newer standards and would bottleneck network throughput.
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802.11ac
Why it's wrong here
802.11ac (Wi-Fi 5) improves speed over 802.11n and operates on 5 GHz, but it has been superseded by Wi-Fi 6 and Wi-Fi 6E. It does not include the latest efficiency features for dense environments. For a new installation seeking the latest standard, a newer option is preferable.
- ✓
802.11ax
Why this is correct
802.11ax, also known as Wi-Fi 6, is the latest widely adopted wireless standard. It offers higher speeds, better performance in crowded areas, and improved efficiency through technologies like OFDMA and MU-MIMO. Configuring the router to use 802.11ax provides the best current balance of speed and reduced interference.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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