In short-range wireless network technology, what is common is ()? (Multiple choice)

• A.Zigbee .
• B.Bluetooth .
• C.RF .
• D.Wifi .
• E.Z-Wave
• F.PLC

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In device management, what protocol does SPPortal use to send messages to DMServer? (Single choice)

• A.SMTP
• B.MQTT
• C.HTTPS
• D.CoAP

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Can the following () company become an oceanConnect ecosystem partner? (Multiple choice).

• A.loT Application Development Company .
• B.loT Platform Company
• C.Chip Company
• D.Mobile APP Company

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The AR501L1Rc device only supports the switch function and does not have the dimming function.

• A.False
• B.True

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

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

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