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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.

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

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

Build device messaging and communication

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

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)

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

Manage the device lifecycle

• Deprovision an autoenrollment
• Provision a device by using DPS
• 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
• Set up Automatic Device Management of IoT devices at scale
• Trigger an action on a set of devices by using IoT Hub Jobs and Direct Methods

Build a solution by using IoT Central

• Define a device type in Azure IoT Central
• Define the operator view
• Monitor devices
• Configure rules and actions in Azure IoT Central
• 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
• Update security daemon and runtime
• Create a deployment for IoT Edge devices
• Install container runtime on IoT devices
• Define and implement deployment manifest
• Deploy a single IoT device to IoT Edge

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
• 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

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

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

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

Perform end-to-end solution testing and diagnostics

• Set up device D2C message tracing by using Azure Distributed Tracing
• Conduct performance and stress testing
• 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 different attestation mechanisms with DPS
• Configure enrollment with symmetric keys
• Configure enrollment with x.509 certificates
• Generate a TPM endorsements key for a device
• Generate and manage x.509 certificates for IoT Devices

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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What is the duration, language, and format of AZ-220:Microsoft Azure IoT Developer Exam

• This is beta exam.
• Type of Questions: This test format is multiple choice.
• Language: English
• Passing Score: 700 / 1000
• Length of Examination: 50 mins
• Number of Questions: 40 to 60 questions(Since Microsoft does not publish this information, the number of exam questions may change without notice.)