单项选择题 A client roams from h-reap ap1 to h-reap ap2. the client is unable to associate to h-reap ap2. h-reap ap2 has six other clients associated to it， which continue to pass traffic. What has caused this problem？（）

单项选择题 Youaretryingtochangethepollingparametersusedbythelocationmanagerviatheciscowcs，andyourrequestisbeingdenied. Whatiswrong？（）

单项选择题 Inwhichservicecomponentofthewirelessoperatephaseareincidenttrendsanalyzedtoidentifypatternsandsystemicconditions？（）