Correct Answer: Update the individual enrollment in DPS with the new TPM endorsement key; the device will re-provision retaining its IoT Hub identity
DPS individual enrollments are identified by the TPM endorsement key. When the TPM is replaced, you update the enrollment record in DPS with the new TPM's endorsement key. You can ...
Correct Answer
Update the individual enrollment in DPS with the new TPM endorsement key; the device will re-provision retaining its IoT Hub identity
Why This Answer Is Correct
DPS individual enrollments are identified by the TPM endorsement key. When the TPM is replaced, you update the enrollment record in DPS with the new TPM's endorsement key. You can configure the DPS reprovisioning policy to retain the existing IoT Hub device identity and twin data, so the device re-provisions with its previous state intact.
This question evaluates your knowledge of Azure Device Provisioning Service — a core concept tested in Microsoft Certified: Azure IoT Developer Specialty (AZ-220). Understanding Azure Device Provisioning Service is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.
You are manufacturing IoT devices that will be shipped globally and deployed in customer environments. You do not know which IoT Hub the device should connect to at manufacture time. You need zero-touch provisioning at customer deployment. Which service enables this?
You are using Azure DPS with X.509 certificate attestation. You need to provision all devices from the same manufacturer into a specific IoT Hub, while devices from a different manufacturer go to a different IoT Hub. How should you configure DPS?
A device in your fleet was provisioned via DPS but needs to be moved to a different IoT Hub due to a regional migration. You want to reprovision the device without replacing its firmware. What is the correct DPS approach?
A developer is setting up an individual enrollment in Azure DPS using TPM attestation. What information must be obtained from the physical TPM chip on the device to register it?
You need to implement a dynamic allocation policy in DPS to assign devices to the nearest geographical IoT Hub based on a real-time lookup in a custom database. Which allocation policy should you configure?