AZ-220: Microsoft Azure IoT Developer Exam Study Guide

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This Microsoft Azure IoT Developer AZ-220 course covers the concepts, development, and coding required to create and maintain an IoT solution at the edge and in the cloud. Besides configuring cloud services and maintaining the devices, the IoT Developer also sets up the physical devices. As part of the IoT developer role, you will have to maintain devices throughout their lifespan.

The topics covered in this blog are:

AZ-220 Certification Overview

This exam tests an applicant’s ability to write code, implement and manage an IoT solution both in the cloud and on the edge. The IoT Developer works with cloud services to configure and maintain devices and can also set up physical devices.

Upon passing the AZ-220 certification exam, you will be responsible for performing the following tasks as an IoT Developer:

  • Perform design and implementation of IoT solutions, including device topology, connectivity, security, and debugging.
  • Install, configure, and manage compute/containers.
  • Manage data pipelines, including monitoring and transformation of data in the context of IoT.
  • Works with data engineers and stakeholders to ensure the success of the business.
  • Provides Azure services, such as data storage, analysis, and processing, as well as platform-as-a-service.
  • Acknowledge and understand Azure IoT service configuration settings in the code section of an IoT solution, and perform specific IoT coding in at least one Azure supported language, such as C#, Node, C, or Python.

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Who is Azure IoT Developer?

Azure IoT Developer has subject matter expertise in implementing the configuration and coding tasks required to create and maintain the cloud and edge portions of an IoT solution.

They are responsible to deploy physical devices and configure and maintain them by using cloud services. In addition, they need to maintain and troubleshoot the configuration throughout their lifespan.

Also, they implement design specifications for IoT solutions, including device topology, connectivity, diagnostics, monitoring, and security.

These Certified Professionals develop and deploy modules and configure device networking for the Azure IoT Edge portion of the solution.

Why Microsoft Azure IoT Developer Certification?

Modern organizations and potential employers can get the core technical skills they need through Microsoft certification. The applicants understand certain tools and applications. In addition, their knowledge is approved by Microsoft.

Below is a list of advantages for Microsoft Certified Professionals,

  • Microsoft Certified Professionals tend to get hired more by an organization.
  • Applicants take up more responsibility and more opportunities for career development.
  • With the intense knowledge and knowledge of technologies, they save time with higher efficiency.
  • Moreover, a Microsoft-certified professional on average can earn up to USD 80,000 annually.

Benefits of AZ-220 Certification

  • With the AZ-220 certification candidates are hired more quickly by employers.
  • The certification helps to set up physical devices and maintain the devices throughout the lifecycle.
  • AZ-220 enables to implementation of designs for IoT solutions including debugging, connectivity, device topology, and security.
  • With edge devices, you can also deploy compute/containers and integrate device networking, including various edge gateway implementations.
  • Also, you will be working with data engineers and stakeholders to ensure a smooth business integration.

Who is this Certification For?

This Certification is suitable for,

  • Candidates that implement code or maintain cloud or edge components of IoT solutions
  • If your job is to manage a device lifecycle from setup and configuration, maintain using cloud services
  • Knowledge of designing IoT solutions including device topology, and connectivity.
  • Managing, monitoring, and transforming data related to IoT

AZ-220 Exam Details

Exam Name

Exam AZ-220: Microsoft Azure IoT Developer

Exam Duration

180 Minutes

Exam Type

Multiple Choice Questions

Number of Questions

110 Questions

Exam Fee




Retirement Date


Exam Languages

English, Japanese, Chinese (Simplified), Korean

Exam AZ-220 Skills Measured

Set up the IoT solution infrastructure


Provision and manage devices


Implement IoT Edge


Implement business integration


Process and manage data


Monitor, troubleshoot, and optimize IoT solutions


Implement security


How to Register for Azure AZ-220 Exam

You can register for the Microsoft Azure IoT Developer Exam (AZ-220) by going to the Official Microsoft Page.


Pre-requisites for AZ-220 Certification

  • Understanding of Azure service to develop an IoT solution such as data storage options, data analysis, data processing, and the Azure IoT PaaS versus SaaS options.
  • Applicants should be able to recognize the Azure IoT configuration setting in the coding part of the IoT solution.
  • Should have basic programming skills in at least one Azure-supported language including C#, C, Python, Node.js, or Java.

AZ-220 Study Guide

Set up the IoT solution infrastructure (10–15%)

Create and configure an IoT Hub

Build device messaging and communication

Configure physical IoT devices

Provision and manage devices (15–20%)

Set up an IoT Hub Device Provisioning Service (DPS)

Manage the device lifecycle

Manage IoT devices by using IoT Hub

Manage IoT devices by using Azure IoT Central

Implement IoT Edge (15–20%)

Set up an IoT Edge device

Deploy an IoT Edge device

Develop IoT Edge modules

Configure an IoT Edge device

Implement business integration (5–10%)

Integrate with upstream and downstream systems

Process and manage data (15–20%)

Configure message routing in Azure IoT Hub

Configure stream processing of IoT data

Process real-time data by using Azure Time Series Insights

Monitor, troubleshoot, and optimize IoT solutions (15–20%)

Configure health monitoring

Troubleshoot device communication

Implement security (10–15%)

Implement security for IoT devices and services

Implement Microsoft Defender for IoT

AZ-220 Exam Retake policy

The AZ-220 exam retake policy is as follows:

  1. If a candidate fails on the first attempt, they must wait for 24 hours before retaking the exam.
  2. If a candidate again fails on the second attempt, then the candidate will have to wait for 14 days.
  3. A candidate will be given a maximum of five attempts to retake an exam in a year.


Microsoft Certified Professionals can manage the device lifecycle, implement designs for Azure IoT solutions and deploy Azure IoT Edge components and configure device networking on the edge with intense knowledge of AZ-220. Moreover, Microsoft Certification can help you to kickstart your journey to become a Microsoft-certified Azure IoT developer.


Q1. How long is AZ-220 valid for?

AZ-220: Microsoft Azure IoT Developer Certification will remain valid for one year.

Q2. How many questions are on the AZ-220?

The Microsoft Azure IoT Developer AZ-220 exam has 110 questions.

Q3. How long is the AZ-220 exam?

AZ-220 exam is 180 minutes long.

Q4. What is passing score in AZ-220?

The passing score for the Microsoft AZ220 exam is 700 out of 1000 marks.

Q5. Is AZ-204 exam easy?

The difficulty of the AZ-204 exam can vary depending on an individual’s prior knowledge, skills, and experience with Microsoft Azure and developing cloud-based applications. Overall, the AZ-204 exam is considered to be an intermediate-level exam and can be challenging for some individuals. However, with adequate preparation, the exam can be manageable and achievable.

Q6. How much does it cost to take the AZ-220 exam?

The AZ-220 exam costs $165 USD.


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Sonali Jain is a highly accomplished Microsoft Certified Trainer, with over 6 certifications to her name. With 4 years of experience at Microsoft, she brings a wealth of expertise and knowledge to her role. She is a dynamic and engaging presenter, always seeking new ways to connect with her audience and make complex concepts accessible to all.


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