单项选择题
A.A firmware upgrade is in progress.
B.The internal radio has failed.
C.An access point buffer overflow is occurring.
D.The access point is booting.
单项选择题 On a Cisco Aironet 1130 Series autonomous access point， the status indicator is blinking dark blue. What does this indicate？（）
单项选择题 WhichofthefollowingfunctionsonthewirelessLANcontrollerisusedtodeterminewhetherornotarogueaccesspointisconnectedtothesameLayer2network？（）
单项选择题 You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN.The phone rings but， when you answer， the call is dropped. What may have caused this problem？（）