单项选择题 On a Cisco 1000 Series controller-based access point， the alarm LED is flashing red， but the otherLEDs are off. What is this access point indicating？（）

单项选择题 Clients using Cisco-LEAP and EAP-FAST authentication are having no problems logging on to thewireless network，but clients using PEAP are failing to log on. Which situation would result in thistype ofproblem？（）

单项选择题 You are configuring a wireless LAN controller for QoS. Which 802.11e user priority tag should you apply to voice applications？（）