- A
The smartphone is connecting to the 5 GHz band, which has poor wall penetration.
5 GHz has shorter range and is more easily blocked by walls, leading to intermittent disconnects when moving rooms.
- B
The access point is overloaded with too many clients.
Why wrong: Overload would affect all clients, not just one device moving rooms.
- C
The smartphone's MAC address is being filtered.
Why wrong: MAC filtering would block the device entirely, not cause intermittent disconnects.
- D
The smartphone's battery saver mode is turning off Wi-Fi.
Why wrong: Battery saver might disable Wi-Fi, but it would not be triggered by moving rooms.
Question 767 of 1,020
220-1201 Mobile Device Network Connectivity Practice Question
This 220-1201 practice question tests your understanding of mobile device network connectivity. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A user's smartphone intermittently disconnects from a known Wi-Fi network when they move to a different room. The network uses a single access point. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
✓
The smartphone is connecting to the 5 GHz band, which has poor wall penetration.
The 5 GHz band offers higher data rates but has significantly poorer wall penetration and range compared to the 2.4 GHz band. When the user moves to a different room, the signal from the single access point attenuates more rapidly at 5 GHz, causing intermittent disconnections. This is the most likely cause because the problem is location-dependent and occurs with a known network.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The smartphone is connecting to the 5 GHz band, which has poor wall penetration.
Why this is correct
5 GHz has shorter range and is more easily blocked by walls, leading to intermittent disconnects when moving rooms.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The access point is overloaded with too many clients.
Why it's wrong here
Overload would affect all clients, not just one device moving rooms.
- ✗
The smartphone's MAC address is being filtered.
Why it's wrong here
MAC filtering would block the device entirely, not cause intermittent disconnects.
- ✗
The smartphone's battery saver mode is turning off Wi-Fi.
Why it's wrong here
Battery saver might disable Wi-Fi, but it would not be triggered by moving rooms.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The 220-1201 exam often tests the misconception that 5 GHz is always superior, leading candidates to overlook its range and penetration limitations in favor of blaming client-side settings like battery saver or MAC filtering.
Detailed technical explanation
How to think about this question
The 5 GHz band uses higher frequency waves (5.15–5.85 GHz) that are more easily absorbed by obstacles like walls, drywall, and furniture due to their shorter wavelength. In contrast, 2.4 GHz waves (2.4–2.4835 GHz) diffract more effectively around obstacles. Many dual-band smartphones default to 5 GHz for better performance, but this can cause connectivity issues in multi-room environments unless the client supports band steering or the access point is configured for seamless roaming.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Mobile Device Network Connectivity — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Device Network Connectivity — This question tests Mobile Device Network Connectivity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The smartphone is connecting to the 5 GHz band, which has poor wall penetration. — The 5 GHz band offers higher data rates but has significantly poorer wall penetration and range compared to the 2.4 GHz band. When the user moves to a different room, the signal from the single access point attenuates more rapidly at 5 GHz, causing intermittent disconnections. This is the most likely cause because the problem is location-dependent and occurs with a known network.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This 220-1201 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 220-1201 exam.
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