What transmission benefit does the WLC ensure during client roaming?

The correct choice highlights the advantage of a seamless transition between access points (APs) during client roaming. In a wireless network managed by a Wireless LAN Controller (WLC), the controller facilitates the movement of client devices between different access points without interrupting their connection to the network. This is made possible through mechanisms such as fast roaming and pre-authentication, which allow clients to quickly establish a connection with a new AP while maintaining their session and ongoing data transfer.

Seamless roaming is crucial in environments where mobility is essential, such as in enterprise settings, educational institutions, and healthcare facilities. It ensures that users can move freely without experiencing dropped connections or significant delays, providing a more stable and user-friendly experience. By managing the handoff process, the WLC minimizes the time it takes for a client to transition from one AP to another, effectively enhancing network performance and user satisfaction.

Other options do not accurately represent the benefits provided during client roaming. For instance, disconnections during roaming would negatively impact user experience, increased latency contradicts the goal of efficient mobility, and manual re-authentication would add unnecessary delays, reducing the fluidity expected in a seamless roaming environment.