Millions of IoT telemetry events per second must be ingested and buffered for downstream real-time processing. Which Azure service is the event-ingestion front door?
A.Azure Event Hubs
High-throughput event buffering = Event Hubs. Correct.
B.Azure SQL Database
Relational DB can't ingest at that rate.
C.Power BI
BI is the consumption end — not ingestion.
D.Azure Blob Storage
Blob is storage — events must land there via something else.
Why this answer
Event Hubs is the big-data event ingestion service — millions of events/sec, partitioned, replayable, Kafka-compatible endpoint. It feeds Stream Analytics/Fabric real-time or landing in the lake. Azure IoT Hub adds device management for IoT specifically.
Correct answer: A · Last reviewed 2026-11-05
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