单项选择题
A.enable concatenation on the non-root bridge only
B.enable concatenation on the root bridge only
C.enable concatenation on both the root bridge and non-root bridge
D.enable concatenation on the root bridge and set it as desirable on the non-root bridge
E.set concatenation as desirable on the root bridge and enable it on the non-root bridge
单项选择题 Eap-fast provides a secure tunnel during phase one to protect the user’s authentication credentials. Which of these entities initializes the secure tunnel？（）
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 rfid tags. the rfid beacon rate is 10 seconds and you have discovered an issue with the rfid timeout value. Where and how should the rfid value be changed？（）
单项选择题 You are installing a cisco aironet 1000 series controller-based access point. when you boot it， all the leds on the access point blink together. What does this indicate about the access point？（）