300-425 Question 264
Select 3An enterprise network administrator is configuring a Cisco Wireless LAN Controller (WLC) to provide seamless connectivity and optimize roaming for users across multiple access points. The administrator needs to ensure that the WLC can dynamically adjust the power and channel settings of access points and also implement Layer 2 roaming without client re-authentication. Which combination of features should the administrator enable on the WLC?
- A
Dynamic Channel Assignment (DCA)
- B
802.11r Fast Transition
- C
Power Save Mode
- D
Client Load Balancing
- E
Radio Resource Management (RRM)
Show answer and explanation
Correct answers: A, B, E
Explanation
To ensure seamless connectivity and optimize roaming, the WLC must dynamically adjust power and channel settings and support fast client roaming. Enabling Radio Resource Management (RRM) allows the WLC to manage power and channels dynamically, while 802.11r Fast Transition ensures efficient Layer 2 roaming without requiring full re-authentication. Dynamic Channel Assignment (DCA), as part of RRM, further optimizes channel usage to minimize interference.
- A. Correct.
Dynamic Channel Assignment (DCA) is a feature of Radio Resource Management (RRM) that allows the WLC to dynamically adjust the channel assignments of access points to minimize interference and optimize performance. This is necessary for seamless connectivity.
- B. Correct.
802.11r Fast Transition facilitates fast roaming by allowing clients to roam between access points without the need for full re-authentication, which is critical for Layer 2 roaming in enterprise networks.
- C. Incorrect.
Power Save Mode is a client-side feature designed to conserve battery life in wireless devices. While useful, it does not address WLC-level configuration for seamless connectivity or roaming.
- D. Incorrect.
Client Load Balancing is a feature that distributes client connections evenly across access points to avoid overloading specific APs. While valuable, it does not directly impact the WLC's ability to dynamically adjust power and channel settings or enable seamless roaming.
- E. Correct.
Radio Resource Management (RRM) enables the WLC to dynamically manage power and channel settings for access points, ensuring optimal performance and minimal interference. It is essential for seamless connectivity in a wireless network.