You have an Azure IoT solution that includes an Azure IoT hub, 100 Azure IoT Edge devices, and 500 leaf devices. You need to perform a key rotation across the devices.
Which three types of entities should you update? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
A . the $edgeHub module identity
B . the $edgeAgent module identity
C . the leaf module identities
D . the IoT Edge device identities
E . the iothubowner policy credentials
F . the leaf device identities
Answer: ADF
Explanation:
To get authorization to connect to IoT Hub, devices and services must send security tokens signed with either a shared access or symmetric key. These keys are stored with a device identity in the identity registry.
An IoT Hub identity registry can be accessed like a dictionary, by using the deviceId or moduleId as the key.
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-control-access https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-identity-registry