Which of the following factors and technologies make NB-Iot connection characteristics?

• A.NB-Iot reduces the overhead of null signaling
• B.Uplink service scheduling unit is small
• C.Base station optimization and upgrade.
• D.PSM/eDRX reduces the resource usage of base station occupied by each device

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Among the following options, the description of the development of the home network is wrong ()

• A.In order to enhance Wi-Fi coverage in the home network, a single-gateway centralized Wi-Fi coverage method is adopted
• B.With the development of home network, its business is becoming more and more abundant
• C.High broadband has always been an important business in the home network
• D.The home network structure gradually develops from a dot to a star and then to a mesh

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Which of the following communication technologies is not a wireless short-range communication technology ()?

• A.NB-IoT
• B.Bluetooth
• C.Z-Ware
• D.WIFI port

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Which of the following options belong to SoftRadio to accelerate the development and verification of NB-IoT devices and applications?

• A.No core network required
• B.No chip/module required
• C.No need for NB-IoT base station
• D.No PC or computer required

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Among the following options, which does not belong to the advantage of static memory in HuaweiLiteOS memory management is ()?

• A.no debris
• B.Allocation on demand
• C.High distribution efficiency
• D.High release efficiency

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