Exam AZ-220 topic 6 question 9 discussion

Actual exam question from Microsoft's AZ-220

Question #: 9
Topic #: 6

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

Show Suggested Answer

Suggested Answer: ADF 🗳️
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

by designtshirt at April 4, 2025, 9:09 a.m.

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