Which of the following statements about the two typical scenarios of LAN survey coverage scenario and bridge backhaul is wrong? (Multiple choice)

• A.Difficult areas for outdoor bridge backhaul are uncertain altitude, complex obstacles, and uncertain installation methods.
• B.The coverage scene should be surveyed as comprehensively as possible. The entire project site must be surveyed under any conditions.
• C.In the outdoor bridge backhaul scenario, if most areas are similar, you can select an area that is convenient for surveying to measure.
• D.Indoor distribution is selected for high-density coverage scenarios, and indoor placement is selected for low-density coverage scenarios.

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Wireless Mesh Network is a new type of dynamic self-organizing and self-configuring wireless network. The nodes in the network can automatically establish and maintain Mesh connectivity.
The nodes of the Mesh link include MPP and MP nodes, which support different functions. Which of the following functions does MPP have to enable communication between internal nodes of Mesh and external networks?

• A.Automatic Topology
• B.Portal function
• C.Automatic route discovery
• D.Data message forwarding

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In the WLAN network, among the four transmission systems of SISO, SIMO, MISO and MIMO, only MIMO can transmit two signals at the same time.

• A.False
• B.True

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A client device is experiencing slow performance due to high interference on the 2.4 GHz band.
The network administrator needs to direct the device to use the 5 GHz band. What should be done?

• A.Enable band steering on the WLAN network
• B.Block 2.4 GHz devices from accessing the WLAN
• C.Increase the transmit power on the 2.4 GHz band
• D.Disable the 2.4 GHz band

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In a hotel room wireless coverage scenario, agile distributed networking is adopted, TAC is hung in parallel, and Eth-Trunk is configured between the access switch and the central AP. Now the engineer replaces the SD card of the central AP due to business needs. If there is no other configuration, the AP will be abnormally offline.

• A.True
• B.False

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