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The Microsoft AZ-220 certification exam measures the individuals’ experience in implementing Azure services. These services make up an Internet of Things (IoT) solution. This includes data storage options, data analysis, PaaS (platform-as-a-service options), and data process. These professionals have the relevant skills in identifying service configuration settings of Azure Internet of Things in the code segment of IoT solutions. The potential candidates should also be able to carry out the identified IoT coding functions in a minimum of one programming language that is supported by Azure, including C, Python, Node, or C#. Those who pass this test are eligible for the Microsoft Certified: Azure IoT Developer Specialty certificate.

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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

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

Build device messaging and communication

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

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

• 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
• Manage devices list in the IoT Hub device registry

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

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

Develop modules

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

Configure an IoT Edge device

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

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

Configure routing in Azure IoT Hub

• Integrate with Event Grid
• Implement message enrichment in IoT Hub
• Configure routing of IoT Device messages to endpoints
• 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)

• 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
• Set up diagnostics logs for Azure IoT Hub
• Configure metrics in IoT Hub

Troubleshoot device communication

• Verify device telemetry is received by IoT Hub
• Troubleshoot device disconnects and connects
• Validate device twin properties, tags and direct methods
• 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 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 enrollment with symmetric keys
• Generate and manage x.509 certificates for IoT Devices
• Generate a TPM endorsements key for a device
• Configure different attestation mechanisms with DPS

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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