Configure Docking Unit for Batch Data Transfer in IoT Solution
Question
You are operating an IoT solution for a vineyard where a fleet of drones is used to monitor plants for possible infections.
The drones, which have no direct network access, collect local weather data and they download them to docking stations at the end of their trips.
The docking unit then transfers the data in batches to the central IoT Hub, using file upload operations.
So that your docking device can complete the operation, you need to configure ...
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answer: D.
Option A is incorrect because custom endpoints are used for forwarding telemetry messages to other Azure services.
For file uploads, this is not a valid option.
Option B is incorrect because while the Initiate file upload built.inn endpoint is used by the operation, no explicit configuration for endpoints is needed; is available for use.
Option C is incorrect because IoT Hub doesn't forward the uploaded files to other services than Storage Account, hence, SA job is incorrect for the given scenario.
Option D is CORRECT because so that you can upload a file to IoT Hub from a device, you must configure a Storage Account and associate it with your IoT hub.
Reference:
In the given scenario, the drones collect local weather data and transfer it to docking stations for batch upload to the central IoT Hub. To enable the docking device to complete the file upload operation, we need to configure an appropriate endpoint.
Endpoint refers to a URL or a destination where the data is sent to or received from. In Azure IoT Hub, endpoints are used to manage communication between the IoT devices and the IoT Hub. Endpoints can be of different types, such as built-in endpoints or custom endpoints.
Built-in endpoints are the default endpoints provided by the Azure IoT Hub, and they can be used for specific purposes such as receiving device-to-cloud messages or sending cloud-to-device messages. However, in the given scenario, using a built-in endpoint may not be appropriate because we need to upload data in batches from the docking device.
A custom endpoint can be created in Azure IoT Hub that allows sending data to a specified URL or endpoint. This endpoint can be used to upload data to a specific storage account, service, or application. In the given scenario, we could create a custom endpoint that points to a storage container in Azure Blob Storage, which could be used to store the data in batches that are uploaded from the docking device.
Alternatively, we could also use a Stream Analytics job to process and transform the data received from the docking device before it is stored in Azure Blob Storage. Stream Analytics job allows real-time processing of the data and can be used to perform filtering, aggregation, and transformation of the data. However, in the given scenario, it may not be necessary to use a Stream Analytics job because we are only transferring weather data in batches.
Therefore, the correct answer in this scenario is option D: a storage container. By configuring a storage container, we can store the data received from the docking device in batches and upload it to the central IoT Hub.