Chapter 12

1. B. The client must associate with a BSS offered by an AP.

2. A. The client device is in complete control over the roaming decision, based on its own roaming algorithm. It uses active scanning and probing to discover other candidate APs that it might roam to.

3. C. Because a single controller is involved, the roam occurs in an intracontroller fashion. Even though the client thinks it is associating with APs, the associations actually occur at the controller, thanks to the split-MAC architecture.

4. C. Intracontroller roaming is the most efficient because the reassociation and client authentication occur within a single controller.

5. C. Cisco Centralized Key Management (CCKM) is used to cache key information between a client and ...

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