1999 Year, IEEE 802.11a The standard formulation is completed. The standard stipulates that the working frequency band of wireless local area network can reach the transmission rate 11Mbps .
5.15 ~5.825GHz , Data transmission

• A.False
• B.True

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when AC When it is a bypass networking, if the data is forwarded directly, then the data flow () flow () AC. AC; If the data is in tunnel forwarding mode, the data

• A.Pass by
• B.Pass, not pass
• C.Don't pass, don't pass
• D.Don't go through

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What are the prerequisites for users to achieve three-tier roaming ()?
(Select 3 Answers)

• A.The SSID released by the two APs of the user roaming handover must have the same authentication method
• B.The two APs that the user roams over must have the same SSID
• C.User roaming requires two AP signals to cover overlapping areas
• D.The two APs for user roaming switching must have the same VLAN

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pass through FTP Way to upgrade AP, You need to ensure AP and FTP Servers can communicate with each other, and AP Put the upgrade file in FTP Root directory.

• A.False
• B.True

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if AP Work in infrastructure mode, then AP The working state at this time is full-duplex mode.

• A.False
• B.True

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