单项选择题
How does a controller-based access point configured to operate in sniffer mode behave？（）
A.allows client traffic， captures data on all channels B.allows client traffic， captures data on a single channel C.allows no client traffic， captures data on all channels D.allows no client traffic， captures data on a single channel
单项选择题 You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may have caused this problem？（）
多项选择题 Whichthreewirelessservicecomponentsbelongtotheoperatephase？（）
单项选择题 Whichciscoaironetseriesdevicescanbepoweredusing802.3afinlinepower？（）
