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350-401 Practice Question: Runs the following command on a Cisco WLC: WLC#…
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?
⚠ Common exam trap
Cisco often tests the inverse relationship between power level numbers and actual transmit power, where candidates mistakenly think a higher power level means higher power output.
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 low-power profile reduces the transmit power of the AP.
The 'Power Level: 5' in the low-power profile indicates a lower transmit power setting compared to 'Power Level: 1 (max)' in the default profile. On Cisco WLCs, power levels are numbered inversely to actual transmit power, with higher numbers representing lower power output. Therefore, the low-power profile reduces the AP's transmit power.
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 low-power profile reduces the transmit power of the AP.
Why this is correct
The low-power profile in Cisco APs selects a lower transmit power level (for example, level 5 as opposed to level 1), which directly reduces the RF power emitted by the AP. This shrinks the cell coverage area, allowing for denser AP deployment with less co-channel overlap and interference. It is purely a transmit-power adjustment; it does not change channel width, data rates, or band.
- ✗
The default profile uses 40 MHz channels.
Why it's wrong here
The default profile does not use 40 MHz channels; both the default and low-power profiles operate on 20 MHz channels in the 2.4 GHz band. In 2.4 GHz, 40 MHz channels consume most of the available spectrum and create significant co-channel interference, so Cisco intentionally keeps the channel width fixed at 20 MHz for these profiles. Channel width is a separate radio setting from the power profile, and changing the power profile does not affect channel width.
- ✗
The low-power profile disables all data rates below 12 Mbps.
Why it's wrong here
The low-power profile does not disable any data rates, and it does not alter the rate selection policy at all. Both profiles keep all supported data rates enabled because the transmit power and rate control are configured independently on a Cisco AP. Disabling rates below a threshold like 12 Mbps is done through a separate rate-control configuration, not via the power profile.
- ✗
The low-power profile is for 5 GHz band.
Why it's wrong here
The low-power profile is not specific to the 5 GHz band; in fact, both the default and low-power profiles are applied to the 2.4 GHz radio. A power profile is a set of transmit-power settings, not a band selection mechanism, so it can be assigned independently of the radio band. In typical Cisco implementations, the low-power profile is often used on 2.4 GHz to mitigate interference and contention in dense environments.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco 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 350-401 exam.