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You have an Azure loT Central solution
You need to verify that telemetry messages from devices arrive to loT Central.
What should you use?
You have an loT solution that includes an Azure IoT hub named Hub1 and 20 loT devices. Hub1 sends cloud-to-device messages to the 10T devices.
You need to track the number of messages that are resubmitted for delivery to an IoT device. Which metric should you monitor?
You have an Azure IoT Edge device.
You need to modify the credentials used to access the container registry. What should you modify?
The module twin for the IoT Edge agent is called $edgeAgent and coordinates the communications between the IoT Edge agent running on a device and IoT Hub. The desired properties are set when applying a deployment manifest on a specific device as part of a single-device or at-scale deployment.
These properties include: runtime.settings.registryCredentials.{registryId}.username runtime.settings.registryCredentials.registryId}.password
https://docs.microsoft.com/en-us/azure/iot-edge/module-edgeagent-edgehub
You have an Azure loT hub that has 500 registered devices.
You need to send device twin change events to Azure Service Bus in real time
Which blade of the loT hub should you configure?
You have an Azure subscription that contains an Azure loT hub named Hubl and an Azure loT Edge device named Devicel.
You need to configure Devicel to operate in extended offline mode and to support modifying the configuration of modules deployed to Device! while the device is offline.
Solution: From Microsoft Visual Studio Code, you modify the deployment manifest and you configure the address of the localhost for the container registry in the runtime settings of edgeAgent. You deploy the manifest to Device1, and then you restart the device.
Does this meet the goal?
