Correct Answer: Distributed tracing in IoT Hub
IoT Hub distributed tracing allows you to track messages using tracing context headers conforming to the W3C Trace Context standard. This helps diagnose routing latency and message...
Correct Answer
Distributed tracing in IoT Hub
Why This Answer Is Correct
IoT Hub distributed tracing allows you to track messages using tracing context headers conforming to the W3C Trace Context standard. This helps diagnose routing latency and message flow paths across Azure service boundaries.
This question evaluates your knowledge of IoT Monitoring — a core concept tested in Microsoft Certified: Azure IoT Developer Specialty (AZ-220). Understanding IoT Monitoring 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.
You need to monitor the connection state of all devices in your IoT Hub fleet and receive an alert when a device that was previously connected goes offline unexpectedly. Which approach should you use?
Your IoT Hub is dropping messages and you need to understand why. You enable resource logs and find messages with the 'DeviceNotFound' error. You also see 'MessageSizeExceeded' errors for some devices. What do these indicate?
You want to audit administrative activities on your Azure IoT Hub, such as who deleted a device or modified message routes. Which resource log categories should you monitor?