A.Four-tier roaming

B.Seamless AP roaming

C.Three-tier roaming

D.Two-tier roaming

A.Extended service area

B.Basic service set

C.Basic service area

D.Extended service set

A.WAPI is China's national standard system for wireless LAN

B.WPA2 uses 802.1X authentication

C.When the user performs web authentication, it is triggered by the user's http message after successfully obtaining the IP address; at this time, it is forcibly redirected to the portal server, Go through the certification process

D.WPA2 PSK authentication requires the user to enter a user name and password to connect

A.Support exporting standardized WLAN planning reports

B.Support automatic identification of obstacles

C.Support the division of general coverage areas and key coverage areas

D.Support automatic deployment of AP locations

A.Point-to-multipoint

B.Multipoint to multipoint

C.Point-to-point method

D.Relay bridging method