Connect Azure IoT Devices to IoT Central
Question
You need to connect 100 distributed sensors to your Azure IoT infrastructure, authenticated with SAS tokens.
The devices are Azure certified sensors developed by a major sensor manufacturer.
To speed up the provisioning process, you decide to use IoT Central, by executing the following steps: Add device ID, SAS, ID scope, and Model ID to device code Import list of devices from CSV Export device data to CSV Connect devices What is the correct order of the steps above?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answer: A.
Option A is CORRECT because, during bulk provisioning of devices, the list of 100 device ID-s and names can be imported from CSV.
IoT Central automatically creates the devices with the necessary SAS keys.
The device list, together with the credentials can be exported to CSV, which then can be used to update the code on the devices.
ID Scope and Model ID also need to be added before actually connecting the device.
Option B is incorrect because importing the list of devices must precede the further steps.
This is the first step which is the basis of mass-creation of devices in the IoT Central.
Option C is incorrect because immediately after creating the devices in the IoT Central (from the list exported earlier), the same list of devices, complemented with authentication data (SAS keys) must be exported and then used for updating the device codes.
Option D is incorrect because all the other steps must be executed before the devices can connect.
References:
The correct order of the steps to connect 100 distributed sensors to Azure IoT infrastructure using IoT Central, with SAS authentication, is:
Add device ID, SAS, ID scope, and Model ID to device code: This step involves programming the device code to include the necessary credentials and identifying information. The device ID is a unique identifier for each sensor. The SAS token is used to authenticate the device with Azure IoT Hub. The ID scope is a globally unique identifier for the Azure IoT Hub instance. The Model ID identifies the device model, which can be used for device management and reporting.
Import list of devices from CSV: This step involves importing a list of the 100 devices into IoT Central from a CSV file. The CSV file should contain the device ID, SAS token, ID scope, and Model ID for each device.
Export device data to CSV: This step involves exporting device data to a CSV file for backup and analysis. The exported data may include device properties, telemetry data, and other relevant information.
Connect devices: This step involves connecting the devices to Azure IoT Hub using the credentials and identifying information specified in step 1. Once the devices are connected, they can start sending telemetry data to Azure IoT Hub for processing and analysis.
Therefore, the correct order of steps is option C: 2, 1, 3, 4.
