The answer is an outdated or faulty wireless adapter driver. This is the most likely cause because the laptop shows a strong signal yet still disconnects, while other devices in the same conference room maintain stable connections—ruling out environmental interference or access point issues. On the CompTIA Network+ N10-009 exam, this scenario tests your understanding of client-side connectivity problems versus infrastructure faults; a common trap is to blame signal strength or channel congestion when the symptom is actually a driver failing to handle roaming or power-save transitions properly. Remember the mnemonic “Strong Signal, Single Client” (SSSC)—if only one device drops despite a strong signal, suspect the client’s driver or configuration first.
N10-009 Network Troubleshooting Practice Question
This N10-009 practice question tests your understanding of network troubleshooting. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 laptop frequently disconnects from the Wi-Fi network when they move to the conference room. Other devices in the conference room maintain stable connections. The laptop shows a strong signal in the conference room. 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.
Laptop's wireless adapter driver is outdated or faulty
A driver issue can cause erratic behavior like frequent disconnects even with good signal strength, especially when roaming or switching channels.
B
AP channel is congested
Why wrong: Channel congestion would likely affect all devices in the area, not just a single laptop.
C
Laptop is using the 5 GHz band while the AP uses 2.4 GHz
Why wrong: If the laptop uses a different band and the AP supports both, the laptop would still maintain a connection; band mismatch would prevent association, not cause intermittent drops.
D
Interference from microwave ovens
Why wrong: Interference would affect all nearby clients, not just one specific laptop.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Laptop's wireless adapter driver is outdated or faulty
The laptop disconnects only when moving to the conference room, while other devices remain stable, ruling out environmental issues. A strong signal but frequent disconnects points to a client-side problem, most commonly an outdated or faulty wireless adapter driver that fails to handle roaming or power-save transitions properly.
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.
✓
Laptop's wireless adapter driver is outdated or faulty
Why this is correct
A driver issue can cause erratic behavior like frequent disconnects even with good signal strength, especially when roaming or switching channels.
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.
✗
AP channel is congested
Why it's wrong here
Channel congestion would likely affect all devices in the area, not just a single laptop.
✗
Laptop is using the 5 GHz band while the AP uses 2.4 GHz
Why it's wrong here
If the laptop uses a different band and the AP supports both, the laptop would still maintain a connection; band mismatch would prevent association, not cause intermittent drops.
✗
Interference from microwave ovens
Why it's wrong here
Interference would affect all nearby clients, not just one specific laptop.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the trap that a strong signal guarantees a stable connection, but in reality, client-side driver issues or misconfigured power-save settings can cause disconnects despite excellent RSSI.
Detailed technical explanation
How to think about this question
Wireless adapter drivers handle critical functions like 802.11r fast roaming, power-save polling (PS-Poll), and beacon frame parsing. An outdated driver may mishandle transition triggers (e.g., RSSI thresholds) or fail to re-authenticate quickly when moving between AP coverage zones, causing the client to drop the connection even though the signal appears strong. In real-world deployments, driver updates often resolve such 'sticky client' issues without any infrastructure changes.
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 N10-009 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this N10-009 question in full detail.
Network Troubleshooting — This question tests Network Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Laptop's wireless adapter driver is outdated or faulty — The laptop disconnects only when moving to the conference room, while other devices remain stable, ruling out environmental issues. A strong signal but frequent disconnects points to a client-side problem, most commonly an outdated or faulty wireless adapter driver that fails to handle roaming or power-save transitions properly.
What should I do if I get this N10-009 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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Question Discussion
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