Azure IoT Developer (AZ-220)
Exam AZ-220: Microsoft Azure IoT Developer
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ExploreAbout this exam
AZ-220, Microsoft Azure IoT Developer, was a specialty-level Microsoft certification exam for developers who build both the cloud and device sides of an IoT solution. According to Microsoft's exam page, candidates were expected to configure and maintain devices through cloud services, set up physical devices, and troubleshoot device configuration across the lifecycle. The measured skills were setting up Azure IoT Hub solution infrastructure, provisioning and managing devices, implementing IoT Edge, implementing business integration, processing and managing data, monitoring, troubleshooting, and optimizing solutions, and implementing security. Microsoft published these as ranges, from 5–10% for business integration up to 20–25% for IoT Edge. The exam was offered in ten languages, including English, Japanese, Korean, French, Spanish, Portuguese (Brazil), Chinese (Simplified and Traditional), Italian, and German. Microsoft recommended a general understanding of device types and Azure services such as data storage, data analysis, data processing, and AI, plus programming ability in at least one Azure IoT SDK-supported language. Preparation combined self-paced and instructor-led options, though Microsoft listed no current learning paths or instructor-led courses for this exam. Note the retirement: Microsoft states the exam retired on July 31, 2023, and the Azure IoT Developer Specialty certification and its renewal assessment are retired. This page is independent study material and is not affiliated with or endorsed by Microsoft.
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About Azure IoT Developer (AZ-220) preparation
Is the AZ-220 exam still available?
No. Microsoft's exam page carries the warning that the exam retired on July 31, 2023. The certification page likewise states the Azure IoT Developer Specialty certification and the renewal assessment are retired. You cannot schedule AZ-220 as a current exam, so treat any study material as preparation for the skills rather than for a live test date.
What did the exam measure?
Microsoft listed seven measured areas: setting up Azure IoT Hub solution infrastructure, provisioning and managing devices, implementing IoT Edge, implementing business integration, processing and managing data, monitoring, troubleshooting, and optimizing IoT solutions, and implementing security. Microsoft published each as a percentage range rather than a fixed weight, so no single point value was official.
Which domain carried the most weight?
Implement IoT Edge, published at 20–25%, was the largest range. Set up the Azure IoT Hub solution infrastructure and Provision and manage devices each came in at 15–20%. The remaining areas were smaller: process and manage data, monitoring and troubleshooting, and security at 10–15% each, and business integration at 5–10%.
What background did candidates need?
Microsoft described candidates as Azure IoT developers with subject matter expertise in creating and maintaining the cloud and device portions of an IoT solution. They should understand device types and Azure services including data storage, data analysis, data processing, and AI, and be able to program in at least one Azure IoT SDK-supported language.
In which languages was the exam offered?
Microsoft listed ten: English, Japanese, Korean, French, Spanish, Portuguese (Brazil), Chinese (Simplified), Italian, German, and Chinese (Traditional). Language availability applied to the exam as published before retirement; confirm current language options with Microsoft for any replacement credential rather than assuming the same list.
How should I order my study if I am learning the skills anyway?
Start with IoT Hub infrastructure and device provisioning, since nearly every later topic depends on a working hub and registered devices. Move next to IoT Edge, the heaviest area, then data processing and monitoring. Leave business integration and security for last, or weave security into each earlier topic instead of treating it as a standalone block.
What did Microsoft provide for preparation?
The exam page showed two preparation routes, self-paced and instructor-led, but stated that learning paths or modules were not yet available for the certification and that no current instructor-led courses were available for the exam. Candidates therefore relied on Microsoft Learn documentation and hands-on practice rather than a curated official course list.
What common mistakes should I avoid when studying this material?
Two stand out. First, memorizing fixed percentage weights: Microsoft published ranges, so a single number is an approximation. Second, assuming the credential is live. It retired on July 31, 2023, so verify current certification paths on Microsoft Learn before investing in exam-day logistics such as scheduling, pricing, or retake planning.