The following pairs PSK The authentication description is wrong ().

• A.WPA and WPA2 All support PSK Certification
• B.PSK The authentication process is similar to the shared key authentication process, so the security is the same
• C.PSK Certification is passed 4 Handshake Key Negotiate to verify STA side Key The legitimacy
• D.PSK Authentication requires the same pre-shared key to be configured on the wireless client and device

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Capacity planning mainly starts from the aspects of equipment performance, number of users, bandwidth requirements, and wireless environment, and estimates the amount required to meet the business volume. AP number quantity.

• A.False
• B.True

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Compared with 802.11a/b/g, the technical advantages of 802.11n include which of the following aspects ()?

• A.Backward compatible with 802.11a/b/g protocol
• B.The maximum theoretical transmission rate is increased to 600Mbps
• C.Support MIMO technology
• D.The other three items are correct

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802.11 In the frame, Frame Control In position Type What is the correct correspondence with the frame format ()?

• A.Type for 01 Time represents data frame
• B.Type for 00 Time represents management
• C.Type for 00 Indicates reserved use
• D.Type for 10 Time represents control frame

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The following statement is correct ().
(Select 3 Answers)

• A.WPA2 PSK authentication requires the user to enter a user name and password to connect
• B.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
• C.WPA2 uses 802.1X authentication
• D.WAPI is China's national standard system for wireless LAN

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