Skills measured

• Set up the IoT solution infrastructure (10-15%)
• Implement IoT Edge (15-20%)
• Implement security (10-15%)
• Process and manage data (15-20%)
• Provision and manage devices (15-20%)
• Implement business integration (5-10%)
• Monitor, troubleshoot, and optimize IoT solutions (15-20%)

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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

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

Build device messaging and communication

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

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

Manage the device lifecycle

• Decommission (disenroll) a device
• Provision a device by using DPS
• 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

• Configure rules and actions in Azure IoT Central
• Monitor devices
• Add and manage devices from IoT Central
• Define a device type in Azure 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
• Deploy a single IoT device to IoT Edge
• Define and implement deployment manifest
• Update security daemon and runtime
• Install container runtime on IoT devices

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

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

Configure stream processing

• Configure Stream Analytics outputs
• Process and filter IoT data by using Azure Functions
• 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
• Query and visualize tracing by using Azure monitor
• 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

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

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

Implement Azure Security Center (ASC) for IoT

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

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

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