You are building an IoT solution where 50,000 devices must send telemetry every 30 seconds. Your IoT Hub is receiving messages but you are hitting throttling errors. Which action should you take first?

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

Correct Answer: Upgrade to a higher IoT Hub tier and increase the number of units

IoT Hub throttling is governed by the tier (Basic or Standard) and the number of units. The daily message quota and per-unit throughput limits are determined by these. Upgrading th...

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Real Exam ScenarioAzure IoT Hub

You are building an IoT solution where 50,000 devices must send telemetry every 30 seconds. Your IoT Hub is receiving messages but you are hitting throttling errors. Which action should you take first?

โœ“ Correct Answer & ExplanationAzure IoT Hub

Correct Answer

Upgrade to a higher IoT Hub tier and increase the number of units

Why This Answer Is Correct

IoT Hub throttling is governed by the tier (Basic or Standard) and the number of units. The daily message quota and per-unit throughput limits are determined by these. Upgrading the tier and adding units directly increases the allowed message rate. Changing protocols or routing does not raise the throttle limit.

๐Ÿ“š What This Question Tests

This question evaluates your knowledge of Azure IoT Hub โ€” a core concept tested in Microsoft Certified: Azure IoT Developer Specialty (AZ-220). Understanding Azure IoT Hub 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.