单项选择题
On a Cisco Aironet 802.11 a/b/g wireless LAN client adapter，the status LED and activity LED are alternating on and off.
What does this indicate？（）
A.The client card has failed.
B.The client card is not associated to the network.
C.The driver has been installed incorrectly.
D.The client card has awakened from power-save mode.
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You are installing a Cisco Aironet 1000 Series controller-based access point. When you boot it， allthe LEDs on the access point blink together. What does this indicate about the access point？（）
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