eLTE-Iot and NB-Iot are similar to LPWA (LowPowerWideArea) communication technology.

• A.True
• B.False

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OceanConneot's Portal has ()? (multiple choice)

• A.SP Portal
• B.OsS Management Portal
• C.OperationPortal
• D.Alarm monitoring Portal

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Wired water meter, the lowest in terms of wiring cost is ()?

• A.RS-485
• B.RS232
• C.Z-igBee
• D.M-bus

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After the third-party platform has successfully registered the serial number of the in-vehicle device to the OceanConnect platform, DceanConnet will generate a deviceld for the device in the platform.

• A.False
• B.True

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What kinds of AT commands are divided into

• A.Inquiry
• B.Execution
• C.Testing
• D.Settings

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