单项选择题

Which class of Cisco access points operate under IEEE 802.3af power？（）

A.Class A
B.Class 1
C.Class 2
D.Class 3
E.Class 4

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单项选择题

Toprovideefficientroamingbetweenthecells，whichpercentofcelloverlapisrecommendedfor2.4GHzand5GHzaccesspoints？（）

A.5 to 10 percent for both 2.4 GHz and 5 GHz
B.10 percent for both 2.4 GHz and 5 GHz
C.20 percent for 2.4 GHz and 15 to 20 percent for 5 GHz
D.20 percent for 2.5 GHz and 10 percent for 5 GHz

单项选择题

UnderU.S.regulatorydomain，whichchannelplandeliversthepropercoverageinalargelecturehallthatrequiresfouraccesspoints？（）

A.1， 4， 7， 11
B.1， 4， 8. 11
C.1， 6， 11， 1
D.2， 4， 6， 8