单项选择题
A.1000base-sx sfp
B.10/100/1000 mbps rj45
C.10/100 mbps rj45
D.10000base-sx
单项选择题 By default，on the wlan controller for a voice application using cisco 7921 wireless ip phones. what is the percentage of rf bandwidth that can be dedicated to the phones？（）
单项选择题 Whichofthefollowingstatementsexplainswhyitisnormallybesttohavemorethanonecontroller-basedaccesspointparticipateinthecontainmentofonerogueaccesspoint？（）
单项选择题 Theiosofanorthamericanciscoaironet1130agseriesstandaloneaccesspointhasbecomecorrupt.youmustthereforereloadthetftpfirmwarE.beforeyoupressandholdthemodebutton，youshouldverifythatthefilenameiswhichofthefollowing？（）