CWAP-403 試験問題を無料オンラインアクセス

When a data frame is encrypted with WPA2, to which portion of the frame is the encryption applied?

• A.Frame body excluding the LLC
• B.The whole MPDU
• C.Frame body including the LLC
• D.Frame body and MAC Header

What is the function of the PMD sub-layer?

• A.Adds a PHY preamble and header to a PSDU
• B.Provides framing
• C.Converts 1s and 0s given to it by the PLCP sub-layer into the appropriate RF signals
• D.Performs A-MPDU

Which one of the following portions of information is communicated in the PHY Header?

• A.Signal strength
• B.Date rate
• C.Noise
• D.SNR

ABC International has installed a new smart ZigBee controlled lighting system. However, the network team is concerned that this new system will interface with the existing WLAN and has asked you to investigate the impact of the two systems operating simultaneously in the 2.4 GHz band. When performing Spectrum Analysis, which question could you answer by looking at the FFT plot?

• A.Do the ZigBee channels used by the lightning system overlap with the WLAN channels?
• B.Is the WLAN corrupting ZigBee system messages?
• C.Is the ZigBee system causing an increase in WLAN retries?
• D.Is the ZigBee system using more the 50% of the available airtime?

The network administrator at ABC Engineering has taken a large packet capture from one of their APs running in monitor mode. She has very little knowledge of 802.11 protocols but would like to use the capture file to evaluate the overall health and performance of their wireless network. When she asks your advice, which tool do you recommend she opens the packet capture file with?

• A.Protocol analyzer
• B.Capture visualization tool
• C.Spectrum analyzer
• D.WLAN scanner