Question 695 of 1,020

Wireless Networking Technologies →mediumMultiple ChoiceObjective-mapped

220-1201 Wireless Networking Technologies Practice Question

This 220-1201 practice question tests your understanding of wireless networking technologies. 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 complains that their laptop frequently disconnects from the Wi-Fi when they move to the conference room, which is 50 feet from the access point through two walls. The network uses 5 GHz. What is the MOST likely cause of the disconnects?

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.

A
The access point is overloaded with too many clients.
Why wrong: Overloading would cause slow speeds for all clients, not just disconnects at a specific location.
B
The laptop's power management settings are turning off the Wi-Fi adapter.
Why wrong: Power management could cause disconnects, but it would likely happen randomly, not consistently when moving to a specific room.
C
5 GHz signals have poor penetration through walls.
5 GHz is more susceptible to attenuation from obstacles, so moving through two walls can cause signal loss and disconnects.
D
The conference room has a metal door that blocks the signal.
Why wrong: A metal door could block signals, but the scenario mentions two walls, not a door, and this is less likely than general attenuation.

Full breakdown with real-world context →

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 signals have poor penetration through walls.

The 5 GHz band offers higher data rates and less interference than 2.4 GHz, but it has significantly poorer wall penetration due to its shorter wavelength. At 50 feet through two walls, the signal attenuation is severe enough to cause frequent disconnects, especially if the walls contain dense materials like concrete or metal studs.

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 access point is overloaded with too many clients.
Why it's wrong here
Overloading would cause slow speeds for all clients, not just disconnects at a specific location.
✗
The laptop's power management settings are turning off the Wi-Fi adapter.
Why it's wrong here
Power management could cause disconnects, but it would likely happen randomly, not consistently when moving to a specific room.
✓
5 GHz signals have poor penetration through walls.
Why this is correct
5 GHz is more susceptible to attenuation from obstacles, so moving through two walls can cause signal loss and disconnects.
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 conference room has a metal door that blocks the signal.
Why it's wrong here
A metal door could block signals, but the scenario mentions two walls, not a door, and this is less likely than general attenuation.

Common exam traps

Common exam trap: answer the scenario, not the keyword

A common mistake is to assume that 5 GHz is always superior because it is faster, without recognizing its trade-off in range and penetration through physical obstacles.

Trap categories for this question

Scenario analysis trap
A metal door could block signals, but the scenario mentions two walls, not a door, and this is less likely than general attenuation.

Detailed technical explanation

How to think about this question

5 GHz signals have a wavelength of approximately 6 cm, compared to 12 cm for 2.4 GHz, making them more susceptible to absorption and reflection by obstacles like drywall, brick, and concrete. The free-space path loss at 5 GHz is higher than at 2.4 GHz, and each wall can add 3–15 dB of attenuation depending on material, quickly pushing the received signal below the receiver sensitivity threshold (typically around -80 dBm for 802.11ac/ax).

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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FAQ

Questions learners often ask

What does this 220-1201 question test?

Wireless Networking Technologies — This question tests Wireless Networking Technologies — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: 5 GHz signals have poor penetration through walls. — The 5 GHz band offers higher data rates and less interference than 2.4 GHz, but it has significantly poorer wall penetration due to its shorter wavelength. At 50 feet through two walls, the signal attenuation is severe enough to cause frequent disconnects, especially if the walls contain dense materials like concrete or metal studs.

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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