Radio Resource Management dynamically adjusts AP channel assignments and transmit power levels to reduce interference and improve wireless performance. RRM continuously analyzes RF conditions across the environment. It does not modify Layer 3 services such as DHCP, routing, or NAT operations.

A consistent disconnection interval strongly suggests a session timeout or idle timeout configuration issue. WLAN policies or RADIUS attributes may force client reauthentication after inactivity. RF interference and DFS events usually create irregular disconnections rather than precisely timed session terminations.

To enable WPA2-Enterprise with RADIUS authentication on a Cisco Catalyst 9800 WLC, the WLAN configuration must specify the use of 802.1X as the authentication mechanism. The command security wpa wpa2 akm dot1x explicitly instructs the WLAN to use WPA2 encryption with the 802.1X authentication key management (AKM), which leverages the configured RADIUS server group for client authentication.

The correct method is software image management workflows, specifically Cisco Catalyst Center Software Image Management, commonly referenced as SWIM. Cisco documents SWIM as the mechanism used to manage software upgrades and maintain consistency of image versions across the network. It provides an image repository, golden-image assignment, image distribution, activation, readiness checks, and scheduled execution. Cisco's wireless automation guidance specifically states that SWIM is used to update Catalyst 9800 Series Wireless Controller software by distributing the image from the Catalyst Center repository to wireless controllers and upgrading the images running on those controllers; both stages can run immediately or be scheduled for a defined maintenance window.
Option C is also validated by Catalyst Center's update-status and workflow views. Cisco documents Image Update Status as the view that shows all update tasks, filters by in-progress, success, or failure, and displays a progress bar for active updates. The workflow view then exposes distribution and activation task status, timing, prechecks, postchecks, checksum verification, and AP pre-image download details. Inventory snapshots and templates do not execute controller firmware upgrades, and "lifecycle workflow" is too generic.

Clients primarily use RSSI thresholds and signal quality metrics to determine when roaming should occur. Aggressive roaming thresholds may trigger unnecessary AP transitions, resulting in instability. CAPWAP MTU and RADIUS timeout values do not directly influence roaming sensitivity decisions made by wireless clients.