H12-311-ENU

Which of the following radio frame belong to the control frame()? (Select 3 Answers)A . BeaconB . RTSC . CTSD . PS-PollView AnswerAnswer: A C D

In the frames of 802.11, the STA associated and certification request belong to which type of frame()?A . Data frameB . Control frameC . Management frameD . All Data frame, control frame, management frame have this functionView AnswerAnswer: C

What is called of the network composed by a wireless AP and associated wireless client()?A . IBSSB . BSSC . ESSD . NSSView AnswerAnswer: B

When completed to transfer one data frame and confirmed, what is the time interval need to wait before sending the next data frame()?A . SIFSB . IFSC . DIFSD . PIFSView AnswerAnswer: C

In the frames of 802.11, what is the interframe spacing between the RTS and CTS()?A . SIFSB . IFSC . DIFSD . PIFSView AnswerAnswer: A

If the AP work is in infrastructure mode, then at this time, AP working condition is full-duplex mode.A . TrueB . FalseView AnswerAnswer: B

Wireless clients is active scanning sending what frame to acquire the surrounding wireless network information()?A . Beacon frameB . Probe Request frameC . Authentication Request frameD . Association Request frameView AnswerAnswer: B

Spread spectrum technology is the foundation of using ISM band wireless data transmission.A . TrueB . FalseView AnswerAnswer: A

What is the 2.4 GHz frequency band non-overlapping channels()?A . 2,7,12B . 3,8,13C . 1,6,11D . 3,7,13View AnswerAnswer: C

In the depolyment of WDS, the bridge network model including()? (Select 3 Answers)A . Point-to-Point ModeB . Point to Multi-point ModeC . Relay BridgeD . Multipoint to Multipoint WayView AnswerAnswer: A B C