WEP encrypted data algorithms use algorithms.

• A.AES
• B.Asymmetric encryption
• C.RC4
• D.CCMP

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The gain of antenna A is 11dBi, and the gain of antenna B is 8dBi. It can be said that antenna A has a larger gain than antenna B.

• A.3dB
• B.Uncertain
• C.3dBd
• D.3dBi

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802.11b supports () channels in the United States, where one channel does not overlap?

• A.14;3
• B.11;3
• C.14; 6
• D.11;6

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In the 802.1 X protocol, you must have () to complete the user authentication and authorization.
(Multiple choice)

• A.eSight Server
• B.authenticator
• C.authentication server
• D.client

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What kind of technology belongs to Wireless MAN in the folllowing?

• A.WLAN
• B.WiMAX
• C.Bluetooth
• D.2G/3G

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