A.Cordless phone

B.Microwave oven

C.Remote control

D.Bluetooth transmission equipment

A.Different throughput capabilities

B.Different data rates supported

C.Different protocols use different technologies

D.Different working bands

A.When the user is in the process of web authentication, which is after obtaining IP address successfully, triggered by the user's HTTP message; at this time, forced to redirect to the portal server, carries on the authentication process

B.WPA2 adopted authentication of 802.1X

C.WPA only support TKIP encryption technology

D.When the user is in the process of web authentication, which is before obtaining IP address successfully, triggered by the user's HTTP message; at this time, forced to redirect to the portal server, carries on the authentication process

A.RC4

B.CCMP

C.AES

D.Asymmetric encryption

A.dB

B.dBi

C.dBm

D.dBw