300-425 Question 285
Single answerA network administrator is configuring a Cisco Wireless LAN Controller (WLC) to improve client roaming performance in a high-density environment. The administrator wants to reduce the time it takes for clients to authenticate with a new access point during roaming. Which feature on the WLC should the administrator enable?
- A
Fast Transition (802.11r)
- B
Client Band Steering
- C
Flexible Radio Assignment
- D
Load Balancing
Show answer and explanation
Correct answer: A
Explanation
Fast Transition (802.11r) is a critical feature for optimizing client roaming in high-density environments. By enabling this feature on the WLC, clients can roam more efficiently between access points with reduced authentication time, ensuring seamless connectivity and improved user experience. Other options, while useful, do not address the specific requirement of reducing authentication time during roaming.
- A. Correct.
Fast Transition (802.11r) is a feature designed to optimize roaming by allowing clients to authenticate faster with new access points using pre-shared keys or fast authentication methods, which is ideal for high-density environments.
- B. Incorrect.
Client Band Steering is used to direct clients to the 5 GHz band for better performance in dual-band environments, but it does not directly influence roaming optimization.
- C. Incorrect.
Flexible Radio Assignment dynamically adjusts radio roles based on network conditions, such as switching between 2.4 GHz and 5 GHz, but it is not related to improving client roaming performance.
- D. Incorrect.
Load Balancing helps distribute clients across access points to prevent congestion, but it does not specifically reduce the time for authentication during roaming.