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From the Device Provisioning Service, you create an enrollment as shown in the exhibit. (Click the Exhibittab.) You need to deploy a new IoT device. What should you use as the device identity during attestation?
Correct Answer: C
Each device uses its derived device key with your unique registration ID to perform symmetric key attestation with the enrollment during provisioning. To generate the device key, use the key you copied from your DPS enrollment to compute an HMAC-SHA256 of the unique registration ID for the device and convert the result into Base64 format. Reference: https://docs.microsoft.com/en-us/azure/iot-edge/how-to-auto-provision-symmetric-keys
