802.11n Standard uses dual band (2.4GHz and 5GHz ), the theoretical transmission rate can reach up to 300Mbps, The actual test rate can reach arrive 100Mbps above.

• A.False
• B.True

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Which of the following protocols can support at the same time 2.4GHz Frequency band and 5GHz Frequency band()?

• A.802.11n
• B.802.11a
• C.802.11b
• D.802.11g

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When a hardware failure occurs in an AP in the network, in order to avoid data reconfiguration, the user can quickly complete the AP replacement by configuring the AP.
replace.

• A.False
• B.True

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

• 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

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exist WLAN Involved in the configuration VLAN What kinds of types are there ()?
(Select 3 Answers)

• A.manage VLAN
• B.user VLAN
• C.Serve VLAN
• D.Certification VLAN

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