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A manufacturing company uses Azure IoT Edge devices to collect sensor data from machinery on the factory floor. This data needs to be processed locally on the Edge devices to filter out noise and perform initial aggregation before being sent to the cloud for further analysis. Which component of Azure IoT Edge allows for custom logic to be deployed and executed directly on the Edge device?
- ADevice Provisioning Service (DPS)
- BIoT Edge Modules
- CEvent Hubs
- DIoT Hub
Show answer & explanationAnswer & explanation
Correct answer: B. IoT Edge Modules
Azure IoT Edge Modules are Docker-compatible containers that can run custom logic, Azure services (like Stream Analytics), or AI models directly on IoT Edge devices. This allows for local processing and filtering before data is sent to the cloud, addressing the requirement. IoT Hub is the cloud gateway, DPS is for device provisioning, and Event Hubs are for cloud ingestion.
Why the other options are wrong
- A. Azure Device Provisioning Service (DPS) is used for zero-touch, just-in-time provisioning of IoT devices to IoT Hub, not for running custom logic on the edge.
- C. Azure Event Hubs is a highly scalable data streaming platform in the cloud, used for ingesting large volumes of events, not for running logic on edge devices.
- D. Azure IoT Hub is a cloud-based service that acts as a central message hub for bidirectional communication between IoT applications and the devices, not for local processing on the edge.
Azure IoT Edge Modules
Azure IoT Edge Modules are Docker-compatible containers that run Azure services, third-party services, or your own custom code directly on IoT Edge devices. They enable local processing and analytics at the edge.
- Containerized units of logic.
- Run directly on IoT Edge devices.
- Enable edge analytics, filtering, and pre-processing.
- Managed from the cloud via IoT Hub.
Memory trick: A factory machine module doing work right on the spot.