Which the following content are included in 802.11n MAC layer technology improvement? (Multiple choice)

• A.MIMO Technology
• B.Frame Polymerization
• C.Piece of technology
• D.Beamforming

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Which of the following description is right for the management VLAN?

• A.The management VLAN address of the AC must be the AC source address.
• B.Service VLAN under the VAP template
• C.responsible for establish the CAPWAP tunnel between AC and AP
• D.mainly responsible for data transmission of WLAN users.

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Which of the following standards organization for the WLAN device is certified to achieve interoperability of WLAN technology?

• A.IEEE
• B.FCC
• C.IETF
• D.WiFi Alliance

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In the term of PoE, what does the AP belong to?

• A.PSU
• B.PD
• C.PSE
• D.PI

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The gain of the antenna A is 11 dBi, and the gain of the antenna B is 8 dBi, it can be said that, how much is the gain of the antenna A larger than that of the antenna B?

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

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