A mobile workstation in a factory contains an AP that is configured as a workgroup bridge. When the workstation moves, it loses connectivity and disrupts operation. What can the engineer implement to minimize roaming problems?
A. Use 802.1X authentication.
B. Use Cisco Centralized Key Management for fast roaming.
C. Use AES for encryption.
D. Use the mobile station command.
https://www.cisco.com/c/en/us/td/docs/routers/access/wireless/software/guide/RolesWGB.html
Configuring a Workgroup Bridge for Roaming
If your workgroup bridge is mobile, you can configure it to scan for a better radio connection to a parent access point or bridge. Use the following command to configure the workgroup bridge as a mobile station:
ap(config)# mobile station
When you enable this setting, the workgroup bridge scans for a new parent association when it encounters a poor Received Signal Strength Indicator (RSSI), excessive radio interference, or a high frame-loss percentage. Using these criteria, a workgroup bridge configured as a mobile station searches for a new parent association and roams to a new parent before it loses its current association. When the mobile station setting is disabled (the default setting) the workgroup bridge does not search for a new association until it loses its current association.