The following is a description of the classification and function of Huawei AP. The following statement is correct (Select 3 Answers).

• A.AP6510DN and AP6610DN are outdoor APs
• B.AP6610DN is a Gigabit fiber interface, so it cannot be directly connected to the AC6605.
• C.AP6010SN and AP6010DN are indoor-mounted APs
• D.AP6310SN is an indoor distributed AP

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After passing, C. passing, after not following the following two-link backup networking, the description is incorrect.

• A.The network service configuration on the active and standby ACs must be consistent.
• B.Dual-link backup technology improves network reliability and ensures business stability in important nodes of the network.
• C.In the process of establishing an active/standby link between the AP and the active and standby ACs, the link established first must be the primary link.
• D.The standby AC should always be in the power-on state.

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Which of the following factors will affect the coverage of WLAN outdoor scenes? (Multiple choice)

• A.Transmit power
• B.Weather
• C.Antenna placement height
• D.Antenna form
• E.Obstacle
• F.Antenna gain

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Which modulation method does the following picture belong to?

• A.phase modulation
• B.amplitude modulation
• C.frequency modulation
• D.modulation

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Which of the following is included in the 802.11n MAC layer improvement technology (Select 2 Answers)?

• A.Block confirmation technology
• B.Beamforming technology
• C.MIMO technology
• D.Frame aggregation technology

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