Topics of AZ-220:Microsoft Azure IoT Developer Exam

Candidates should apprehend the examination topics before they begin of preparation. because it'll extremely facilitate them in touch the core. Our AZ-220 exam dumps will include the following topics:

1. Implement the IoT solution infrastructure (15-20%)

Create and configure an IoT Hub

• Configure a device twin
• Configure IoT Hub tier and scaling
• Create an IoT Hub
• Register a device

Build device messaging and communication

• Build messaging solutions by using SDKs (device and service)
• Configure file upload for devices
• Implement device-to-cloud communication
• Implement cloud-to-device communication

Configure physical IoT devices

• Configure device networking, topology, and connectivity
• Recommend an appropriate protocol based on device specifications

2. Provision and manage devices (20-25%)

Implement the Device Provisioning Service (DPS)

• Link an IoT Hub to the DPS
• Create a new enrollment in DPS
• Manage allocation policies by using Azure Functions
• Create a Device Provisioning Service

Manage the device lifecycle

• Provision a device by using DPS
• Decommission (disenroll) a device
• Deprovision an autoenrollment

Manage IoT devices by using IoT Hub

• Trigger an action on a set of devices by using IoT Hub Jobs and Direct Methods
• Manage devices list in the IoT Hub device registry
• Modify device twin tags and properties
• Set up Automatic Device Management of IoT devices at scale

Build a solution by using IoT Central

• Add and manage devices from IoT Central
• Define the operator view
• Monitor devices
• Configure rules and actions in Azure IoT Central
• Define a device type in Azure IoT Central

3. Implement Edge (15-20%)

Set up and deploy an IoT Edge device

• Update security daemon and runtime
• Create a device identity in IoT Hub
• Deploy a single IoT device to IoT Edge
• Create a deployment for IoT Edge devices
• Install container runtime on IoT devices
• Define and implement deployment manifest

Develop modules

• Publish an IoT Edge module to an Azure Container Registry
• Deploy a module to an Edge device
• Create and configure an Edge module

Configure an IoT Edge device

• Implement module-to-module communication
• Implement and configure offline support
• Select and deploy an appropriate gateway pattern

4.Process and manage data (15-20%)

Configure routing in Azure IoT Hub

• Implement message enrichment in IoT Hub
• Configure routing of IoT Device messages to endpoints
• Integrate with Event Grid
• Define and test routing queries

Configure stream processing

• Process and filter IoT data by using Azure Functions
• Configure Stream Analytics outputs
• Create ASA for data and stream processing of IoT data

Configure an IoT solution for Time Series Insights (TSI)

• Create an Azure Time Series Insights (TSI) environment
• Implement solutions to handle telemetry and time-stamped data
• Connect the IoT Hub and the Time Series Insights (TSI)

5. Monitor, troubleshoot, and optimize IoT solutions (15-20%)

Configure health monitoring

• Set up diagnostics logs for Azure IoT Hub
• Configure metrics in IoT Hub
• Query and visualize tracing by using Azure monitor

Troubleshoot device communication

• Establish maintenance communication
• Troubleshoot device disconnects and connects
• Validate device twin properties, tags and direct methods
• Verify device telemetry is received by IoT Hub

Perform end-to-end solution testing and diagnostics

• Conduct performance and stress testing
• Set up device D2C message tracing by using Azure Distributed Tracing
• Estimate the capacity required for each service in the solution

6. Implement security (15-20%)

Implement device authentication in the IoT Hub

• Choose an appropriate form of authentication
• Manage the symmetric keys for a device
• Manage the X.509 certificates for a device

Implement device security by using DPS

• Configure enrollment with x.509 certificates
• Configure different attestation mechanisms with DPS
• Generate and manage x.509 certificates for IoT Devices
• Generate a TPM endorsements key for a device
• Configure enrollment with symmetric keys

Implement Azure Security Center (ASC) for IoT

• Configure custom alerts
• Enable ASC for IoT in Azure IoT Hub
• Create security modules

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Exam Preparation

The Microsoft Learning Platform has everything that the candidates need to completely prepare for their certification test. You can explore free resources as well as paid training courses. You will also find the exam questions that will help you evaluate your level of preparedness for the actual test. All in all, you can look at the following options:

• Practice Test

  The applicants can find this option on the official website. This training tool is very useful in evaluating their knowledge before taking the real test. It is recommended to spend ample time going over the questions to understand the patterns of the actual exam questions and how to answer them appropriately to achieve the passing score.

• Free Resources

  These are free online learning paths that are designed to help the students gain the required skills for obtaining the certification. There are four learning paths with different modules for each track and you can explore all of them for free. The paths that are identified for Microsoft AZ-220 include Introduction to Azure IoT, Securely Connecting the IoT Devices to Cloud, Building the Intelligence Edge with the Azure IoT Edge, and Developing the IoT Solutions with the Azure IoT Central.

• Paid Training Course

  This is an instructor-led training course that is designed to provide all the learners with the knowledge and skills needed to create and maintain the Cloud and edge portions associated with Azure IoT solutions. The course is not for free, but it focuses on the complete coverage of Azure IoT services, including IoT Hub, Azure Stream Analytics, Device Provisioning Services, and Time Series Insights, among others.

Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/az-220

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Exam Syllabus

This Microsoft exam measures specific technical skills. Therefore, you must develop competence in these technical areas to be able to achieve success in the certification test. The domains covered in the exam are highlighted below:

• Security Implementation: 15-20%

  This objective requires that the individuals demonstrate their expertise in the implementation of device authentication within IoT Hub, implementation of device security with the use of DPS, as well as implementation of Azure Defender for IoT.

• Data Processing & Management: 15-20%

  This part focuses on the examinees’ skills in configuring routing within Azure Internet of Things Hub. It also covers their ability to configure stream processing, and configure the IoT solution for TSI. The applicants should know how to create stream processing for IoT data and ASA for data. They should also be able to implement solutions for handling time-stamped and telemetry data.

• Monitoring, Optimization, and Troubleshooting of Internet of Things Solutions: 15-20%

  The questions from this area will measure the skills of the test takers in the configuration of health monitoring, troubleshooting of specific device communications, and execution of end-to-end solution diagnostics and testing.

• Provisioning & Management of Devices: 20-25%

  In the framework of this subject area, one’s skills in implementing DPS, managing device lifecycle, and using IoT devices with the help of IoT Hub will be evaluated. The learners need to possess the expertise required to develop a solution with the use of IoT Central. This covers the skills in defining an operator’s view, monitoring devices, and monitoring an application’s health with metrics. You should also have some expertise in configuring actions and rules in Azure IoT Central and defining device types in it.

• Implementation of Edges: 15-20%

  The potential candidates for the Microsoft AZ-220 exam should possess the capability to deploy IoT Edge devices, set up them, and develop modules. They will be required to demonstrate their skills in creating device identity with IoT Hub, deploying production certificates, securing Internet of Things Edge solutions, and provisioning IoT Edge devices with the use of DPS. The questions from this section will also measure their skills in configuring IoT Edge devices, including selecting and deploying the relevant gateway pattern, implementing module-to-module communications, and configuring offline support.

• Implementation of IoT Solution Infrastructures: 15-20%

  This topic shows that you are able to create and configure IoT Hub. Besides that, you must also demonstrate competence in registering a device, configuring a device twin, and IoT Hub tier & scaling. It also helps the candidates develop their skills in building communication and device messaging as well as configuring substantial IoT devices.