An IoT solution generates 1 million events per second from sensors worldwide. You need to ingest this telemetry data, perform real-time windowed aggregations (e.g., average temperature over a 5-minute tumbling window), and output the results to Power BI. Which combination of services should you recommend?

Answer options:

Azure Service Bus and Azure Functions.

Azure Event Grid and Azure Logic Apps.

Azure Event Hubs and Azure Stream Analytics.

Azure Data Factory and Azure Synapse Analytics.

How to approach this question

Identify the ingestion service for big data and the processing service for real-time windowing.

Full Answer

C.Azure Event Hubs and Azure Stream Analytics.✓ Correct

Azure Event Hubs and Azure Stream Analytics.

Azure Event Hubs is a big data streaming platform capable of receiving millions of events per second. Azure Stream Analytics is a real-time analytics engine that natively supports windowing functions and outputting directly to Power BI.

Common mistakes

Confusing Event Hubs (telemetry) with Service Bus (transactional messaging).

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