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This exam measures your ability to set up the IoT solution infrastructure; provision and manage devices; implement IoT Edge; process and manage data; monitor, troubleshoot, and optimize IoT solutions; and implement security.

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The exceptional expertise and great hands-on experience that any Azure IoT specialist requires to develop can be acquired with the Microsoft AZ-220 exam. By explaining every bit of this subject matter, a test like this plays a crucial role in creating a gen-next workforce of seasoned Azure IoT professionals.

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.

• 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.

• 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.

• 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.

• 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.

• 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.

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
• Create an IoT Hub
• Configure IoT Hub tier and scaling
• 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

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

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

Implement the Device Provisioning Service (DPS)

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

Manage the device lifecycle

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

Manage IoT devices by using IoT Hub

• Modify device twin tags and properties
• 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
• Set up Automatic Device Management of IoT devices at scale

Build a solution by using IoT Central

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

3. Implement Edge (15-20%)

Set up and deploy an IoT Edge device

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

Develop modules

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

Configure an IoT Edge device

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

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

Configure routing in Azure IoT Hub

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

Configure stream processing

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

Configure an IoT solution for Time Series Insights (TSI)

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

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

Configure health monitoring

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

Troubleshoot device communication

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

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

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

Implement device security by using DPS

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

Implement Azure Security Center (ASC) for IoT

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

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

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