The AZ-220: Microsoft Azure IoT Developer is a professional exam that will teach you how to create, maintain, and develop Azure IoT (Internet of Things) cloud and edge components. You’ll get a solid understanding of the key Azure IoT services, as well as how to utilize them to configure and maintain devices. This exam essentially covers all of the main Azure IoT services, including IoT Hub, Device Provisioning Services, Azure Stream Analytics, Time Series Insights, and so on.
Microsoft Exam AZ-220: Overview
The Microsoft Azure IoT Developer is in charge of the implementation and coding necessary to build and manage an IoT solution’s cloud and edge components. Essentially, the IoT Developer is in charge of device upkeep throughout their entire cycle. Additionally, an Azure IoT developer maintains collaboration between data engineers and stakeholders to enable effective business integration.
To elaborate the job role more specifically, as an IoT Developer, you will be responsible to perform the following tasks-
- Firstly, execute designs for IoT solutions, including device topology, connectivity, debugging, and security.
- Secondly, deploy compute/containers and configures device networking.
- Then, implement designs for solutions to manage data pipelines, including monitoring and data transformation as it relates to IoT.
- Moreover, work with data engineers and other stakeholders to ensure successful business integration.
- Also, responsible for the implementation of Azure services, including data storage options, data analysis, data processing, and platform-as-a-service options.
- Lastly, recognize Azure IoT service configuration settings within the code portion of an IoT solution and perform specific IoT coding tasks in at least one Azure-supported language, including C#, Node, C, or Python.
Microsoft AZ-220 Exam Format:
When you are crystal clear with the format of the exam it becomes quite easy to plan for the same and perform better –
- In the Microsoft AZ-220 exam, there will about 40 to 60 questions and the duration for the exam will be 120 minutes. You have to be really quick to attempt all the questions.
- Also, there will be no negative marking in the exam. Hence you can attempt all the questions without any sort of problem.
- This exam will cost you $165 USD.
- Further, the format of the exam questions will be multiple-choice and multiple-response. We recommend you to use the technique of eliminating and select. Therefore, try to eliminate options that do not suit the requirement and go for the best match.
Exam Course Outline
Every question is designed to challenge your knowledge, so you must be very thorough with the course outline. Below-mentioned is the sections covered in the Microsoft: AZ-220 exam. The course Outline comprises all the skills a candidate must possess. It allows the candidate to view the Also, you must be acquainted with all the sub-modules of the domains.
Microsoft AZ-220 Exam has updates in the course outline as on July 28, 2022.
The updated Microsoft Azure IoT Developer AZ-220 exam course outline includes the following topics:
Set up the IoT Solution Infrastructure (10-15%)
Creating and configuring an IoT Hub
- Creating an IoT Hub (Microsoft Documentation: Create an IoT hub using the Azure portal)
- Registering a device (Microsoft Documentation: Register a new device in the IoT hub)
- Configuring a device twin (Microsoft Documentation: Get started with device twins (.NET) )
- Configuring IoT Hub tier and scaling (Microsoft Documentation: Choose the right IoT Hub tier for your solution)
Building device messaging and communication
- Building messaging solutions by using SDKs (device and service) (Microsoft Documentation: Understand and use Azure IoT Hub SDKs)
- Implementing device-to-cloud communication (Microsoft Documentation: Use IoT Hub message routing to send device-to-cloud messages to different endpoints)
- Implementing cloud-to-device communication (Microsoft Documentation: Send messages from the cloud to your device with IoT Hub (.NET))
- Configuring file upload for devices (Microsoft Documentation: Upload files from your device to the cloud with IoT Hub (.NET) )
- Optimize message size and scaling for IoT Hub (Microsoft Documentation: Choose the right IoT Hub tier for your solution)
- Connect to IoT Hub by using Transport Layer Security (TLS) server certificates (Microsoft Documentation: Transport Layer Security (TLS) support in IoT Hub)
Configuring physical IoT devices
- Recommend an appropriate protocol or gateway based on device specifications (Microsoft Documentation: Reference – choose a communication protocol)
- Configuring device networking, topology, and connectivity (Microsoft Documentation: IoT Hub support for virtual networks with Private Link and Managed Identity)
- Add IoT Plug and Play capabilities to a device in a model-driven solution (Microsoft Documentation: IoT Plug and Play)
Provision and manage devices (15-20%)
Set up Device Provisioning Service
- Creating a Device Provisioning Service (Microsoft Documentation: Set up the IoT Hub Device Provisioning Service with the Azure portal)
- Creating a new enrollment in Device Provisioning Service (Microsoft Documentation: Enroll TPM device to IoT Hub Device Provisioning Service using C# service SDK)
- Linking an IoT Hub to the Device Provisioning Service (Microsoft Documentation: az iot dps linked-hub)
Managing the device lifecycle
- Provisioning a device by using Device Provisioning Service (Microsoft Documentation: Set up a device to provision using the Azure IoT Hub Device Provisioning Service)
- Deprovisioning an autoenrollment (Microsoft Documentation: How to deprovision devices that were previously auto-provisioned)
- Decommissioning (disenroll) a device (Microsoft Documentation: How to disenroll a device from Azure IoT Hub Device Provisioning Service)
Managing IoT devices by using IoT Hub
- Managing devices list in the IoT Hub device registry (Microsoft Documentation: Understand the identity registry in your IoT hub)
- Modifying device twin tags and properties (Microsoft Documentation: Understand and use device twins in IoT Hub)
- Configure a set of devices by using IoT Hub Automatic Device Management (Microsoft Documentation: Automatic IoT device and module management using the Azure portal)
- Implement and manage configuration on a set of devices by using IoT Hub Automatic Device Management
- Control access to device functionality by using module identities and module twins (Microsoft Documentation: Understand and use module twins in IoT Hub)
Manage IoT devices by using Azure IoT Central
- Create and manage device templates by using Azure IoT Central and Digital Twins Definition Language (DTDL) (Microsoft Documentation: device templates)
- Configuring rules, actions, and commands in Azure IoT Central (Microsoft Documentation: Configure rules and actions for your device in Azure IoT Central)
- Add, enroll, and manage devices by using Azure IoT Central (Microsoft Documentation: Manage individual devices in your Azure IoT Central application)
- Manage Azure IoT Central applications, including security, tenants, customization, and visualizations (Microsoft Documentation: Create and manage an Azure IoT Central application from the CSP portal)
- Manage data integration, including data ingress, data export, and data transformation (Microsoft Documentation: IoT Central data integration guide)
- Configure and manage Azure IoT Central jobs (Microsoft Documentation: Manage devices in bulk in your Azure IoT Central application)
- Manage Azure IoT Central by using APIs (Microsoft Documentation: Azure IoT Central REST API reference)
Implement IoT Edge (15-20%)
Setting up an IoT Edge device
- Creating a device identity in IoT Hub (Microsoft Documentation: az iot hub device-identity)
- Set up an IoT device for IoT Edge (Microsoft Documentation: Deploy your first IoT Edge module to a Windows device)
- Install container runtime on IoT devices (Microsoft Documentation: Use the Windows ML container Insider Preview with Azure IoT Edge Runtime)
- Configure container startup options to interact with the host system (Microsoft Documentation: Container Tools launch settings)
- Update IoT Edge runtime (Microsoft Documentation: Update IoT Edge)
- Provision IoT Edge devices by using device provisioning service (Microsoft Documentation: Azure IoT Hub Device Provisioning Service)
Deploy an IoT Edge device
- Create and implement a deployment manifest (Microsoft Documentation: deploy modules and establish routes in IoT Edge)
- Create a deployment for a single IoT Edge device (Microsoft Documentation: Understand IoT Edge automatic deployments for single devices or at scale)
- Creating a deployment to target multiple devices
- Create a continuous deployment by using Azure DevOps (Microsoft Documentation: Use continuous integration)
Develop IoT Edge modules
- Create and customize an Edge module (Microsoft Documentation: Create and deploy custom IoT Edge modules)
- Deploy a custom IoT Edge module to an IoT Edge device (Microsoft Documentation: Develop your own IoT Edge modules)
- Publish an IoT Edge module to an Azure Container Registry (Microsoft Documentation: Prepare to deploy your IoT Edge solution in production)
- Define module configuration
- Configure IoT Edge module routing (Microsoft Documentation: Learn how to deploy modules and establish routes in IoT Edge)
- Configure an environment for IoT Edge development (Microsoft Documentation: Prepare your development and test environment for IoT Edge)
Configure an IoT Edge device
- Select an appropriate gateway pattern (Microsoft Documentation: How an IoT Edge device can be used as a gateway)
- Deploy an IoT gateway by using IoT Hub and IoT Edge (Microsoft Documentation: Azure IoT Edge)
- Configure IoT Edge certificates (Microsoft Documentation: Understand how Azure IoT Edge uses certificates)
- Implement and configure offline support (including local storage) (Microsoft Documentation: Give modules access to a device’s local storage)
- Create a layered hierarchy of IoT Edge devices (Microsoft Documentation: Create a hierarchy of IoT Edge devices)
- Interact with the IoT Edge security manager (Microsoft Documentation: Azure IoT Edge security manager)
Implement Business Integration (5-10%)
Integrate with upstream and downstream systems
- Set up input and output connections to support native Azure services and to enable third-party services (Microsoft Documentation: Configure Azure services for use with Configuration Manager)
- Set up IoT Hub routing to support downstream Azure resources (Microsoft Documentation: Set up IoT Hub routing to support downstream Azure resources)
Develop an IoT solution that uses Azure Digital Twins
- Create models and digital twins (Microsoft Documentation: Learn about twin models and how to define them in Azure Digital Twins)
- Map IoT device data to digital twin models and relationships (Microsoft Documentation: Use Azure Digital Twins to update an Azure Maps indoor map)
- Ingest IoT device messages and translate messages to digital twins (Microsoft Documentation: Ingest IoT Hub telemetry into Azure Digital Twins)
- Configure routes and endpoints to trigger business logic and data processing (Microsoft Documentation: Manage endpoints and routes in Azure Digital Twins)
- Manage and query the Azure Digital Twins graph (Microsoft Documentation: Query the Azure Digital Twins twin graph)
- Update properties on Azure Digital Twins entities in the graph (Microsoft Documentation: Manage digital twins)
- Monitor and troubleshoot Azure Digital Twins (Microsoft Documentation: Monitor Azure Digital Twins with diagnostics logs)
Process and manage data (15-20%)
Configuring message routing in Azure IoT Hub
- Implementing message enrichment in IoT Hub (Microsoft Documentation: Use Azure IoT Hub message enrichments)
- Implement routing of IoT Device telemetry to endpoints (Microsoft Documentation: Use IoT Hub message routing to send device-to-cloud messages to different endpoints)
- Implement routing of IoT Hub non-telemetry to endpoints
- Defining and testing routing queries (Microsoft Documentation: IoT Hub message routing query syntax)
- Configure IoT Hub as an Azure Event Grid source (Microsoft Documentation: Azure IoT Hub as an Event Grid source)
- Reconfigure the default Azure Event Hubs endpoint when there are multiple endpoints (Microsoft Documentation: Allow access to Azure Event Hubs namespaces from specific virtual networks)
Configuring stream processing of IoT data
- Creating Azure Stream Analytics for data and stream processing by using the Azure portal (Microsoft Documentation: Process real-time IoT data streams with Azure Stream Analytics)
- Processing and filter IoT data by using Azure Functions (Microsoft Documentation: Processing data from IoT Hub with Azure Functions)
- Write user-defined functions and aggregations in Stream Analytics (Microsoft Documentation: Azure Stream Analytics JavaScript user-defined aggregates)
- Consume Azure Machine Learning functions in Stream Analytics (Microsoft Documentation: Integrate Azure Stream Analytics with Azure Machine Learning)
- Configure Stream Analytics outputs (Microsoft Documentation: Outputs from Azure Stream Analytics)
Create Azure Stream Analytics queries
- Write a Stream Analytics query that runs in the IoT Edge (Microsoft Documentation: Azure Stream Analytics on IoT Edge)
- Write a Stream Analytics query that runs in the cloud (Microsoft Documentation: Azure Stream Analytics)
Process real-time data by using Time Series Insights
- Create a Time Series Insights environment (Microsoft Documentation: Create a new Azure Time Series Insights)
- Connect the IoT Hub and the Time Series Insights environment (Microsoft Documentation: Add an IoT hub event source to your Azure Time Series Insight environment)
- Create a reference data set for a Time Series Insights environment by using the Azure portal (Microsoft Documentation: Create a reference data set for your Azure Time Series Insights)
- Implement Time Series model hierarchies, types, and instance fields (Microsoft Documentation: Time Series Model in Azure Time Series Insights Gen2)
- Consume data by using Time Series Expression syntax (Microsoft Documentation: Azure Time Series Insights Gen2 Time Series Expression syntax)
Monitor, troubleshoot, and optimize IoT solutions (5-10%)
Configuring health monitoring
- Configure rules and alerts based on IoT Hub metrics (Microsoft Documentation: Set up and use metrics and logs with an IoT hub)
- Setting up diagnostics logs for Azure IoT Hub (Microsoft Documentation: Enable the diagnostic logs)
- Apply Azure Policy definitions for IoT Hub (Microsoft Documentation: Azure Policy built-in definitions for Azure IoT Hub)
- Gather IoT Edge metrics (Microsoft Documentation: Collect and transport metrics)
- Retrieve diagnostics from Azure IoT Edge (Microsoft Documentation: Troubleshoot your IoT Edge device)
Troubleshooting device communication
- Verifying device telemetry is received by IoT Hub (Microsoft Documentation: Send telemetry from a device to an IoT hub and read it with a back-end application )
- Validating device twin properties, tags, and direct methods (Microsoft Documentation: Understand and use device twins in IoT Hub, Understand and invoke direct methods from IoT Hub)
- Troubleshooting device disconnects and connects (Microsoft Documentation: Monitor, diagnose, and troubleshoot disconnects with Azure IoT Hub)
- Troubleshoot IoT Edge modules and devices (Microsoft Documentation: Troubleshoot your IoT Edge device)
- Troubleshoot message loss
- Evaluate and test IoT Hub failover (Microsoft Documentation: Perform manual failover for an IoT hub)
Implement security (5-10%)
Implement security for IoT devices and services
- Implement device and gateway security, including shared access keys, key rotation, managed identities, Hardware Security Modules (HSMs), and Trusted Platform Modules (TPMs) (Microsoft Documentation: Trusted Platform Module Technology Overview, Security practices for Azure IoT device manufacturers)
- Implement secure connections, including access control, authentication, shared access policies, and TLS (Microsoft Documentation: Control access to IoT Hub using Shared Access Signatures)
Implement Microsoft Defender for IoT
- Configure a Defender for IoT agent-based solution (Microsoft Documentation: Configure Microsoft Defender for IoT agent-based solution)
- Install and configure Defender-IoT-micro-agents (security agents) (Microsoft Documentation: Install the Defender for IoT micro agent)
- Configure built-in and custom alerts for IoT Hub (Microsoft Documentation: Defender for IoT Hub custom security alerts, Defender for IoT Hub security alerts)
Learning Resources for Microsoft: AZ-220 Exam
There is thousands of study materials available for the AZ-220: Microsoft Azure IoT Developer test, but it is up to you to pick the most accurate one and use it to your advantage. You should also have a clear outline of your course. So look over your course curriculum carefully and thoroughly. You may now enrol in an instructor-led course titled Microsoft Azure IoT Developer Course to help you prepare for the test. It’s an interactive session with a live instructor in which you may get instant answers to all of your questions. Because it is participatory, it is far better than traditional training approaches. It is also less costly than any other form of education.
You may also become a member of the Microsoft online community. You may read other candidates’ posts and learn from their perspectives and thoughts there. It’s a great opportunity to interact with and learn from other people pursuing the same certification. Furthermore, taking practise examinations is one of the most beneficial things you can do to prepare for your certification exam. You should take as many practise exams as possible since this will help you learn the pattern and structure of the exam, which will fuel your wisdom and confidence.
In addition to the above-mentioned learning resources, we also provide Microsoft: AZ-220 Online Tutorial and Practice Tests to ease your preparation. The tutorials provide a well-elaborated guide that serves as a roadmap in your career. Also, it contains the necessary study resources, that’ll enhance your knowledge. Go through the tutorials, and we ensure you that it’ll be worth referring to in your journey towards becoming a Microsoft Certified Azure IoT Developer.
Expert’s Corner
The Microsoft: AZ-220 course is quite beneficial since it will provide you with a wide understanding of the workings and potential of Azure and DevOps methodologies. Because of its flexibility, this degree is essential for pursuing a career in cloud computing. With the aid of this qualification, you can have access to a wide range of professional opportunities. It is critical that you pass this exam. You should concentrate on improving your knowledge and strengthening your weakest areas. Finally, take a good number of practise exams to help you review the whole course in the exciting environment of the actual exam. The key to keeping the knowledge you’ve learned is to revise it. So practice more and bring out the best in you.
