350-401 Architecture Practice Question
A network administrator is configuring a Cisco wireless controller to support a high-density auditorium. The design requires that client devices be evenly distributed across available access points and that roaming be optimized for voice traffic. Which feature should be enabled to achieve these goals?
⚠ Common exam trap
A common mix-up: candidates confuse load balancing with band steering or spectrum analysis, which do not address even client distribution across APs.
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
✓
Cisco Client Load Balancing
Cisco Client Load Balancing is designed to distribute clients evenly across access points by managing association requests. In a high-density auditorium, this prevents any single AP from becoming overloaded, improving overall performance. For voice roaming, additional features like 802.11k/v/r are recommended, but the primary feature for even distribution is load balancing, which directly addresses the stated requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cisco Aironet Extensions
Why it's wrong here
Cisco Aironet Extensions are proprietary enhancements for interoperability between Cisco clients and infrastructure, but they do not provide load balancing or roaming optimization. They include features like CCKM for fast roaming, but the question asks for even distribution and voice roaming, which are better addressed by load balancing and 802.11k/v.
- ✓
Cisco Client Load Balancing
Why this is correct
Cisco Client Load Balancing distributes client devices across access points by delaying association responses when an AP is heavily loaded. This helps achieve even distribution in high-density environments. Combined with other features like 802.11k/v, it can optimize roaming, but load balancing itself is the primary feature for even client distribution, making it correct here.
- ✗
Cisco Band Select
Why it's wrong here
Cisco Band Select encourages dual-band clients to use the 5 GHz band, reducing congestion on 2.4 GHz. However, it does not evenly distribute clients across access points or optimize roaming for voice. It addresses band steering, not load balancing or roaming, so it is not the correct feature for this scenario.
- ✗
Cisco CleanAir
Why it's wrong here
Cisco CleanAir is a spectrum intelligence feature that detects and mitigates RF interference. While it improves wireless reliability, it does not directly manage client load balancing or optimize roaming for voice traffic. It focuses on spectrum analysis, so it does not meet the load distribution and roaming requirements in this scenario.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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.