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AZ-305 · Application architecture

Practice question 286 of 400 · hard

One million devices emit telemetry that real-time detection and historical analytics must read independently and replay after restart. Which two design elements fit? Select 2 answers.

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  1. A.Commit checkpoints before storing processing results
  2. B.Use Event Grid delivery as an unlimited retained log
  3. C.Assign independent applications separate consumer groups and checkpoint after durable processing
  4. D.Use Event Hubs for retained partitioned telemetry
  5. E.Use one Service Bus queue with all applications competing to ensure each gets every event
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✓ Correct answers

  • Assign independent applications separate consumer groups and checkpoint after durable processing
  • Use Event Hubs for retained partitioned telemetry

Event Hubs supplies retained stream partitions and independent consumption views; checkpoints after durable work allow safe restart. Competing queue consumers divide messages, early checkpointing can skip unprocessed events, and Event Grid notifications are not an unlimited retained replay log. Source guide: PDF page(s) 51.

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