200-901 Network Fundamentals Practice Question
In a wireless network using 802.11ac, which frequency band does the standard primarily operate in to achieve higher throughput?
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
✓
5 GHz
802.11ac (Wi-Fi 5) operates exclusively in the 5 GHz band, allowing wider channels and higher throughput.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
5 GHz
Why this is correct
Correct. 802.11ac uses 5 GHz.
- ✗
2.4 GHz
Why it's wrong here
802.11ac does not use 2.4 GHz.
- ✗
6 GHz
Why it's wrong here
6 GHz is used by Wi-Fi 6E.
- ✗
Both 2.4 GHz and 5 GHz
Why it's wrong here
802.11n uses both; 802.11ac uses only 5 GHz.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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