hardMultiple ChoiceObjective-mapped
FC0-U71 Practice Question: A company's IT department received multiple…
A company's IT department received multiple complaints from employees working on the third floor of an office building. They report that their wireless connections drop frequently and internet access is very slow. The network administrator performs a site survey and discovers that there are over 20 wireless access points (APs) in the vicinity, most operating on channels 1, 6, and 11. The company's AP is a dual-band 802.11ac device currently configured to use the 2.4 GHz band on channel 6. The administrator also notes that the company's AP is placed on a metal shelf near an elevator shaft. Which of the following actions should the administrator take to most significantly improve the wireless performance?
⚠ Common exam trap
The trap here is that candidates often focus on physical placement or channel changes within the 2.4 GHz band, overlooking that the fundamental solution in a high-density, interference-saturated environment is to shift to the 5 GHz band, which offers far more spectrum and less congestion.
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
✓
Change the AP to use the 5 GHz band
The 2.4 GHz band is heavily congested with over 20 APs on channels 1, 6, and 11, causing co-channel interference and frequent drops. Switching to the 5 GHz band on the dual-band 802.11ac AP provides many more non-overlapping channels (up to 23 with DFS) and significantly less interference, directly addressing the root cause of the slow and unreliable connections.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Change the AP to use the 5 GHz band
Why this is correct
The 5 GHz band has more channels and less congestion, significantly improving performance.
- ✗
Relocate the AP away from the metal shelf and elevator
Why it's wrong here
While relocation reduces physical obstacles, the primary issue is channel congestion.
- ✗
Increase the AP's transmission power
Why it's wrong here
Increasing power can increase interference with other APs and does not address channel congestion.
- ✗
Change the AP channel to 1
Why it's wrong here
Channel 1 is also likely crowded because many APs use it.
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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.