AZ-220 Exam Dumps | You have 1,000 devices that connect to an Azure IoT hub. You are performing a scheduled check of deployed

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Question 82/114

You have 1,000 devices that connect to an Azure IoT hub.
You are performing a scheduled check of deployed IoT devices.
You plan to run the following command from the Azure CLI prompt.
az iot hub query --hub-name hub1 --query-command "SELECT * FROM devices WHERE connectionState = 'Disconnected'" What does the command return?

A. the Device Disconnected events

B. the device twins

C. the Connections logs

D. the device credentials

Correct Answer: B

Device twin queries: IoT Hub exposes the device twins as a document collection called devices. For example, the following query retrieves the whole set of device twins:
SELECT * FROM devices
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-query-language#device-and-module-twin- queries

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