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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:

• 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.

• 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.

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Test Characteristics

Validation AZ-220 is a job role-based specialty-level exam designed to hone test-takers’ skills at multiple levels. To achieve this aim, the test takes the help of a strict exam structure, which includes 40-60 multiple-choice questions that also might have other formats like best answers, case studies, etc. Next, the Microsoft AZ-220 exam aspirant must secure a minimum 70% score to come up with flying color in the official testing. In addition, an exam like this is available in the English, Japanese, Chinese (Simplified), and Korean languages globally. The standard fee for AZ-220 is $165, which should be paid as an exam voucher. Take note that the exam voucher once purchased is not refundable and non-transferable.

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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

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

Build device messaging and communication

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

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

Manage the device lifecycle

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

Manage IoT devices by using IoT Hub

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

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
• Define the operator view
• Add and manage devices from IoT Central

3. Implement Edge (15-20%)

Set up and deploy an IoT Edge device

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

Develop modules

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

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
• Implement message enrichment in IoT Hub
• Define and test routing queries
• Integrate with Event Grid

Configure stream processing

• Create ASA for data and stream processing of IoT data
• Configure Stream Analytics outputs
• 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
• Create an Azure Time Series Insights (TSI) environment
• Connect the IoT Hub and the Time Series Insights (TSI)

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

Configure health monitoring

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

Troubleshoot device communication

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

Perform end-to-end solution testing and diagnostics

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

6. Implement security (15-20%)

Implement device authentication in the IoT Hub

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

Implement device security by using DPS

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

Implement Azure Security Center (ASC) for IoT

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

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

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