In a WLAN network, what are the following advantages of using a PoE switch for power supply compared to using a PoE power adapter for power supply? (Multiple choice)

• A.PoE port can be remotely managed
• B.APOE switch equipment costs less
• C.Reuse network cable power supply to reduce construction costs
• D.No external power supply, more beautiful when deployed

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The license file of Huawei wireless controller is bound to the equipment serial number (ESN), that is, the license file is unique and corresponds to the device.

• A.True
• B.False

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In a certain enterprise WLAN network, only when the access authentication security policy selects which of the following, the link authentication needs to use the shared key authentication method?

• A.Open
• B.WPA/WPA2
• C.Dynamic WEP
• D.Static WEP

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In the outdoor backhaul scenario, which of the following descriptions of the site selection principle is wrong?

• A.If there are obstacles near the site, the height of the pole only needs to be higher than the obstacle.
• B.The site should be selected away from strong electric and magnetic fields
• C.If there is other Wi-Fi interference near the site, you can set it to a different channel or coordinate to turn off the interference source.
• D.The site should be located in an open area with no obstacles nearby.

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In the stadium hall scene, the floor heights mainly include ordinary areas (3 meters) and high- ceiling areas (greater than 6 meters).
Which of the following descriptions of the network planning solutions for these two areas is wrong?

• A.Both areas can be covered by omnidirectional APs
• B.For areas with a floor height of more than 6 meters, it is recommended that APs be wall-mounted, deployed at intervals of 18 to 25 meters, and at least 3 meters away from load-bearing columns.
• C.When deploying APs in both areas, they should be as far away from the stadium seating area as possible.
• D.If the floor height is between 3 and 6 meters, it is recommended to place APs on the ceiling at a spacing of 18 to 25 meters.

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