Among the following options, which factors will cause users to be unable to search for wireless network signals ()? (Select 2 Answers)

• A.The user's wireless network card is not enabled or the hardware switch of the wireless network card is not turned on
• B.The user's wireless network card driver is abnormal
• C.The wireless controller is equipped with user isolation function
• D.AP Configured 5G Priority, leading to 2.4G Wireless client cannot find the signal

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CAPWAP Protocol support Split Mac and Local Mac Two working modes.

• A.False
• B.True

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STA issued 802.11 Message to pass AP When entering the Ethernet, it is converted to 802.3 Packets that are not in the priority mapping method are ().

• A.No priority mapping
• B.according to UP Map to priority
• C.According to different VAP Set different priorities
• D.Arrive according to the message AP Precedence

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802.11 In the frame, RTS and CTS What is the interframe interval between ()?

• A.SIFS
• B.DIFS
• C.IFS
• D.PIFS

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At present, the security policy based on user authentication that is widely used in the enterprise network is () (Select 2 Answers)

• A.WPA2 802.1X+TKIP/CCMP
• B.WPA2 PSK+TKIP/CCMP
• C.WPA1 PSK+TKIP/CCMP
• D.WPA1 802.1X+TKIP/CCMP

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