How to Prepare For AZ-220:Microsoft Azure IoT Developer Exam
Preparation Guide for AZ-220:Microsoft Azure IoT Developer Exam
Introduction
Microsoft has created a track for Azure professionals who are knowledgeable in Azure IoT landscape to get certified this platform. This certification program provides Microsoft Azure IoT developer professionals a way to demonstrate their skills. The assessment is based on a rigorous exam using industry standard methodology to determine whether a candidate meets Microsoft's proficiency standards.
According to Microsoft, a Microsoft AZ-220 Certified Professional enables organizations to leverage Microsoft Azure IoT developer technologies with a thorough implementation and the coding required to create and maintain the cloud and edge portion of an IoT solution. An IoT Developer is responsible for maintaining the devices throughout the life cycle.
Certification is evidence of your skills, expertise in those areas in which you like to work. There are many vendors in the market that are providing these certifications. If candidate wants to work on Microsoft Azure IoT developer and prove his knowledge, certification offered by Microsoft. This AZ-220 Exam Certification helps a candidate to validates his skills in Microsoft Azure IoT.
In this guide, we will cover the AZ-220:Microsoft Azure IoT Developer Certification exam, AZ-220:Microsoft Azure IoT Developer Certified professional salary and all aspects of the AZ-220:Microsoft Azure IoT Developer Certification.
Introduction to AZ-220:Microsoft Azure IoT Developer Exam
Candidates for AZ-220 Exam are seeking to prove fundamental knowledge and skills of Microsoft Azure IoT developer domain. Before taking this exam, exam aspirants ought to have a solid fundamental information of the concepts shared in preparation guide as well as designs for IoT solutions implementation knowledge would give an added edge.
It is suggested that professionals accustomed to the ideas and also the technologies represented here by taking relevant training courses. Candidates are expected to have some hands-on experience with key responsibilities such as compute/containers deployment and configures device networking, manage data pipelines, including monitoring. After passing this exam, candidates get a certificate from Microsoft that helps them to demonstrate their proficiency in Azure IoT development to their clients and employers.
Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/az-220
Microsoft AZ-220 Exam Syllabus Topics:
| Topic | Details |
|---|---|
Set up the IoT Solution Infrastructure (10-15%) | |
| Create and configure an Azure IoT Hub | -create an IoT Hub -register a device -configure a device twin -configure IoT Hub tier and scaling |
| Build device messaging and communication | - build messaging solutions by using SDKs (device and service) -implement device-to-cloud communication -implement cloud-to-device communication -configure file upload for devices - optimize message size and scaling - connect to IoT Hub using TLS server certificates |
| Configure physical IoT devices | -recommend an appropriate protocol based on device specifications -configure device networking, topology, and connectivity |
Provision and Manage Devices (15-20%) | |
| Set Up Device Provisioning Service (DPS) | -create a Device Provisioning Service -create a new enrollment in DPS -link an IoT Hub to the DPS |
| Manage the device lifecycle | -provision a device by using DPS -deprovision an autoenrollment -decommission (disenroll) a device |
| Manage IoT devices by using IoT Hub | -manage devices list in the IoT Hub device registry -modify device twin tags and properties -configure a set of devices by using IoT Hub Automatic Device Management -trigger an action on a set of devices by using IoT Hub Jobs and Direct Methods -implement a device firmware update process by using device management primitives - configure module identities |
| Manage IoT devices by using Azure IoT Central | - create a custom device template by using Azure IoT Central -configure rules and actions in Azure IoT Central - customize the operator view -add and manage devices from IoT Central -troubleshoot device connections and data mapping -create an application based on an app template for an industry vertical - export a custom application template -create and manage a new application based on a custom application template - upgrade and version a device template - run IoT Central jobs |
Implement IoT Edge (15-20%) | |
| Set up an IoT Edge device | -create a device identity in IoT Hub - set up an IoT device for IoT Edge -select and install container runtime on IoT devices -implement module access to the host system - update IoT Edge runtime - provision IoT Edge devices by using DPS |
| Deploy an IoT Edge device | - create and implement a deployment manifest -create a deployment for a single IoT Edge device -create a deployment to target multiple devices -create a continuous deployment by using Azure DevOps |
| Develop IoT Edge modules | - create and customize an Edge module -deploy a custom IoT Edge module to an Edge device -deploy an IoT Edge module from the Azure Marketplace to an Edge device -publish an IoT Edge module to an Azure Container Registry - define module configuration - configure IoT Edge module routing -configure environment for IoT Edge development; debug Edge modules in development environment |
| Configure an IoT Edge device | - select an appropriate gateway pattern -deploy an IoT gateway by using IoT Hub and IoT Edge - configure IoT Edge certificates - implement and configure offline support (including local storage) |
Implement Business Integration (5-10%) | |
| Integrate with upstream and downstream systems | - set up input and output connections -set up IoT Hub routing for triggering workflows - test data interface integration - integrate third-party solutions -configure workflows, including rules and alerts |
| Develop Azure Digital Twins (ADT) solutions | -create ADT models and digital twins -map IoT device data to ADT models and relationships -ingest IoT device messages and translate messages to ADT -configure routes and endpoints to trigger business logic and data processing - query the ADT graph - update properties on ADT entities in the graph - monitor and troubleshoot ADT |
Process and manage data (15-20%) | |
| Configure message routing in Azure IoT Hub | -implement message enrichment in IoT Hub - implement routing of IoT device messages to endpoints -define and test routing queries - configure IoT Hub as an Event Grid source -reconfigure the default EventHub endpoint when there are multiple endpoints |
| Configure stream processing of IoT data | -create ASA for data and stream processing of IoT data -process and filter IoT data by using Azure Functions - write user-defined functions and aggregations in ASA - consume Azure Machine Learning functions in ASA - configure Stream Analytics outputs |
| Create ASA queries | - write an ASA query that runs in the IoT Edge - write an ASA query that runs in the cloud |
| Process real-time data by using Time Series Insights (TSI) | - create a TSI environment - connect the IoT Hub and the TSI environment - create a reference data set for a TSI environment by using the Azure portal - implement Time Series model hierarchies, types, and instance fields - consume data by using Time Series Expression syntax |
Monitor, troubleshoot, and optimize IoT solutions (15-20%) | |
| Configure health monitoring | -configure metrics in IoT Hub -set up diagnostics logs for Azure IoT Hub - configure IoT Hub scaling (SKUunit) programmatically -query and visualize tracing by using Azure Monitor - apply Azure Policy definitions for IoT Hub - gather IoT Edge metrics - retrieve diagnostics from Azure IoT Edge |
| Troubleshoot device communication | -establish maintenance communication by using RDP or SSH - establish maintenance communication by using Device Streams -verify device telemetry is received by IoT Hub -validate device twin properties, tags and direct methods -troubleshoot device disconnects and connects - troubleshoot IoT Edge devices |
| Ensure performance and availability | - identify and resolve bottlenecks -calculate capacity requirements for each service -create a simulated fleet of devices for performance and stress testing - troubleshoot message loss - test manual failover |
Implement security (10-15%) | |
| Implement security for IoT devices and services | - implement device and gateway security - ensure secure connections |
| Implement Azure Defender for IoT | -configure an Azure Defender for IoT agent-based solution - implement Defender-IoT-micro-agents (security agents) -configure built-in and custom alerts for IoT Hub |
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Microsoft AZ-220 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Monitor, troubleshoot, and optimize IoT solutions | 10–15% | - Solution monitoring
|
| Topic 2: Set up the Azure IoT Hub solution infrastructure | 15–20% | - Build device messaging and communication
|
| Topic 3: Process and manage data | 10–15% | - Message routing and stream processing
|
| Topic 4: Implement security | 10–15% | - Security implementation
|
| Topic 5: Implement IoT Edge | 20–25% | - IoT Edge setup and deployment
|
| Topic 6: Provision and manage devices | 15–20% | - Device provisioning service (DPS)
|
| Topic 7: Implement business integration | 5–10% | - Integration with services
|
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