单项选择题 You are using ADU and are authenticated and associated to an access point. However， you are unable toobtain an IP address. Which of these has caused this problem？（）

单项选择题 Your customer has deployed a Cisco Wireless Location Appliance within its warehouse environment.However， employees there have been experiencing problems when tracking objects using active RFIDtags. You use an access point scan to determine if the Location Appliance has been deployed correctly. Making which change to warehouse deployment location services will most likely correct the problem？（）

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