Your Stream Analytics job processes IoT Hub telemetry. You notice that out-of-order events are causing incorrect window calculations because some sensors report data with a delay of up to 10 seconds. How should you configure Stream Analytics to handle this?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: Set 'Out-of-order tolerance window' to 10 seconds in the Stream Analytics job configuration

The 'Out-of-order tolerance window' tells Stream Analytics to wait up to N seconds for late-arriving events before finalizing a time window. Setting it to 10 seconds allows events ...

๐Ÿ“‹Part of Microsoft Certified: Azure IoT Developer Specialty (AZ-220) ยท Azure Certification Practice
Real Exam ScenarioAzure Stream Analytics

Your Stream Analytics job processes IoT Hub telemetry. You notice that out-of-order events are causing incorrect window calculations because some sensors report data with a delay of up to 10 seconds. How should you configure Stream Analytics to handle this?

โœ“ Correct Answer & ExplanationAzure Stream Analytics

Correct Answer

Set 'Out-of-order tolerance window' to 10 seconds in the Stream Analytics job configuration

Why This Answer Is Correct

The 'Out-of-order tolerance window' tells Stream Analytics to wait up to N seconds for late-arriving events before finalizing a time window. Setting it to 10 seconds allows events delayed by sensor network latency to be correctly included in their time window, preventing incorrect calculations due to event reordering.

๐Ÿ“š What This Question Tests

This question evaluates your knowledge of Azure Stream Analytics โ€” a core concept tested in Microsoft Certified: Azure IoT Developer Specialty (AZ-220). Understanding Azure Stream Analytics is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.