单项选择题 On a cisco 1000 series controller-based access point，the alarm led is flashing red，but the other leds are off. What is this access point indicating？（）

多项选择题 Whichthreeoftheseusergroupsareavailableonciscowcsversion4.0？（）

单项选择题 Clients using cisco-leap and eap-fast authentication are having no problems logging on to The wireless network， but clients using peap are failing to log on. Which situation would result in this type of problem？（）