The correct conclusion is that the high-density profile is designed to support more clients by using narrower channels and lower power. This is because RF profile summary interpretation on a WLC reveals that narrower 20 MHz channels reduce co-channel interference and allow more access points to coexist in the same physical space, while lower transmit power shrinks cell sizes, enabling denser AP placement without overlapping coverage. On the ENCOR 350-401 exam, this concept tests your understanding of how RF profiles balance throughput versus client density—a common trap is assuming wider channels always improve performance, when in high-density environments they actually degrade it due to increased interference. Remember the memory tip: “Narrow and low for the crowd; wide and high for the sky”—narrow channels and low power serve many clients in a small area, while wide channels and high power maximize throughput for fewer clients over larger distances.
350-401 Wireless Infrastructure Practice Question
This 350-401 practice question tests your understanding of wireless infrastructure. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 network engineer runs the following command on a Cisco WLC:
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The high-density profile is designed to support more clients by using narrower channels and lower power.
The output shows two RF profiles. The default profile uses wider channel widths (up to 80 MHz) and higher power, while the high-density profile uses only 20 MHz channels and lower power to reduce interference and support more clients.
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 high-density profile is designed to support more clients by using narrower channels and lower power.
Why this is correct
Narrower channels (20 MHz) and lower power reduce co-channel interference, which is beneficial in high-density environments.
Related concept
Read the scenario before looking for a memorised answer.
✗
The default profile uses only 20 MHz channels.
Why it's wrong here
The default profile uses 20/40/80 MHz, meaning it can use up to 80 MHz channels.
✗
The high-density profile disables all data rates below 12 Mbps.
Why it's wrong here
It disables rates 6 and 9 Mbps, but not all below 12; 12 is included.
✗
The default profile is used for 2.4 GHz band.
Why it's wrong here
Both profiles are for 5 GHz band as indicated.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 350-401 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 350-401 question in full detail.
Identify which 350-401 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Wireless Infrastructure — This question tests Wireless Infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The high-density profile is designed to support more clients by using narrower channels and lower power. — The output shows two RF profiles. The default profile uses wider channel widths (up to 80 MHz) and higher power, while the high-density profile uses only 20 MHz channels and lower power to reduce interference and support more clients.
What should I do if I get this 350-401 question wrong?
Identify which 350-401 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A network engineer runs the following command on a Cisco WLC:
WLC# show ap rf-profile summary
RF-Profile Name: default-rf-profile
Description: Default RF Profile
Band: 2.4 GHz
Channel Width: 20 MHz
Data Rates: 1,2,5.5,11,6,9,12,18,24,36,48,54 Mbps
Power Level: 1 (max)
RF-Profile Name: low-power
Description: Low Power Profile
Band: 2.4 GHz
Channel Width: 20 MHz
Data Rates: 1,2,5.5,11,6,9,12,18,24,36,48,54 Mbps
Power Level: 5
Based on this output, what can be concluded?
medium
✓ A.The low-power profile reduces the transmit power of the AP.
B.The default profile uses 40 MHz channels.
C.The low-power profile disables all data rates below 12 Mbps.
D.The low-power profile is for 5 GHz band.
Why A: Both profiles use 2.4 GHz and 20 MHz channels. The low-power profile uses a higher power level number (5) which typically means lower power (since power level is inversely related to power output on Cisco APs). The default profile uses power level 1 (max power).
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Question Discussion
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