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Device identities are represented as JSON documents. They consists of properties such as:

• deviceId: This represents the unique identification or the IoT device
• ETag: This is a string representing a weak ETag for the device identity
• symkey: This is a composite object containing a primary and a secondary key, stored in base64 format
• status: If enabled, the device can connect with IoT Hub. If disabled, this device cannot access any device-facing endpoint
• statusReason: A string that can be used to store the reason for status changes
• connectionState: It can be connected or disconnected