Candidates for this exam should have subject matter expertise implementing the configuration and coding tasks required to create and maintain the cloud and edge portions of an IoT solution.
Responsibilities for this role include deploying physical devices, configuring and maintaining them by using cloud services, and maintaining and troubleshooting the configuration throughout the device lifecycle.
Azure IoT developers are also responsible for implementing design specifications for IoT solutions, including device topology, connectivity, diagnostics and monitoring, and security.
These professionals develop and deploy modules and configure device networking for the Azure IoT Edge portion of the solution. In addition to this, they implement designs for solutions to manage data pipelines, including monitoring and data transformation as they relate to IoT.
Azure IoT developers work with architects, data engineers, and other stakeholders to ensure successful business integration, including the implementation of the Azure Digital Twins service.
Candidates for this exam should have a general understanding of device types and Azure services, including data storage options, data analysis, data processing, AI, and other platform as a service (PaaS) options. They must be able to program in at least one Azure IoT software development kit–supported (SDK–supported) language.
Set Up the IoT Solution Infrastructure (10-15%)
Create and configure an IoT Hub
   create an IoT Hub
   register a device
   configure a device twin
   configure IoT Hub tier and scaling
Build device messaging and communication
   build messaging solutions by using SDKs (device and service)
   implement device-to-cloud communication
   implement cloud-to-device communication
   configure file upload for devices
   optimize message size and scaling
   connect to IoT Hub using TLS server certificates
Configure physical IoT devices
   recommend an appropriate protocol based on device specifications
   configure device networking, topology, and connectivity
Provision and manage devices (15-20%)
Set up an IoT Hub Device Provisioning Service (DPS)
   create a DPS instance
   create a new enrollment in DPS
   link an IoT Hub to the DPS instance
Manage the device lifecycle
   provision a device by using DPS
   deprovision an autoenrollment
   decommission (disenroll) a device
Manage IoT devices by using IoT Hub
   manage the devices list in the IoT Hub device registry
   modify device twin tags and properties
   configure a set of devices by using IoT Hub Automatic Device Management
   trigger an action on a set of devices by using IoT Hub Jobs and Direct Methods
   implement a device firmware update process by using device management primitives
   configure module identities
Manage IoT devices by using Azure IoT Central
   create a custom device template by using Azure IoT Central
   configure rules and actions in IoT Central
   customize the operator view
   add and manage devices from IoT Central
   troubleshoot device connections and data mapping
   create an application based on an app template for an industry vertical
   export a custom application template
   create and manage a new application based on a custom application template
   upgrade and version a device template
   run IoT Central jobs
   interact with IoT Central devices using the REST APIs
Implement IoT Edge (15-20%)
Set up an IoT Edge device
   create a device identity in IoT Hub
   set up an IoT device for IoT Edge
   select and install container runtime on IoT devices
   implement module access to the host system
   update IoT Edge runtime
   provision IoT Edge devices by using DPS
Deploy an IoT Edge device
   create and implement a deployment manifest
   create a deployment for a single IoT Edge device
   create a deployment to target multiple devices
   create a continuous deployment by using Azure DevOps
Develop IoT Edge modules
   create and customize an IoT Edge module
   deploy a custom IoT Edge module to an IoT Edge device
   deploy an IoT Edge module from Azure Marketplace to an IoT Edge device
   publish an IoT Edge module to Azure Container Registry
   define module configuration
   configure IoT Edge module routing
   configure environment for IoT Edge development; debug IoT Edge modules in the
development environment
Configure an IoT Edge device
   select an appropriate gateway pattern
   deploy an IoT gateway by using IoT Hub and IoT Edge
   configure IoT Edge certificates
   implement and configure offline support (including local storage)
   create a layered hierarchy of IoT Edge devices
Implement Business Integration (5-10%)
Integrate with upstream and downstream systems
   set up input and output connections
   set up IoT Hub routing for triggering workflows
   test data interface integration
   integrate third-party solutions
   configure workflows, including rules and alerts
Develop Azure Digital Twins solutions
   create Azure Digital Twins models and digital twins
   map IoT device data to Azure Digital Twins models and relationships
   ingest IoT device messages and translate messages to Azure Digital Twins
   configure routes and endpoints to trigger business logic and data processing
   query the Azure Digital Twins graph
   update properties on Azure Digital Twins entities in the graph
   monitor and troubleshoot Azure Digital Twins
Process and Manage Data (15-20%)
Configure message routing in Azure IoT Hub
   implement message enrichment in IoT Hub
   implement routing of IoT device messages to endpoints
   define and test routing queries
   configure IoT Hub as an Azure Event Grid source
   reconfigure the default Azure Event Hubs endpoint when there are multiple endpoints
Configure stream processing of IoT data
   create Azure Stream Analytics for data and stream processing of IoT data
   process and filter IoT data by using Azure Functions
   write user-defined functions and aggregations in Stream Analytics
   consume Azure Machine Learning functions in Stream Analytics
   configure Stream Analytics outputs
Create Azure Stream Analytics queries
   write a Stream Analytics query that runs in IoT Edge
   write a Stream Analytics query that runs in the cloud
Process real-time data by using Azure Time Series Insights
   create a Time Series Insights environment
   connect IoT Hub and the Time Series Insights environment
   create a reference data set for a Time Series Insights environment by using the Azure
portal
   implement Time Series Model hierarchies, types, and instance fields
   consume data by using Time Series Expression syntax
Monitor, Troubleshoot, and Optimize IoT Solutions (15-20%)
Configure health monitoring
   configure metrics in IoT Hub
   set up diagnostics logs for IoT Hub
   configure IoT Hub scaling (SKU/unit) programmatically
   query and visualize tracing by using Azure Monitor
   apply Azure Policy definitions for IoT Hub
   gather IoT Edge metrics
   retrieve diagnostics from IoT Edge
Troubleshoot device communication
   establish maintenance communication by using RDP or SSH
   establish maintenance communication by using Azure Device Streams
   verify device telemetry is received by IoT Hub
   validate device twin properties, tags, and direct methods
   troubleshoot device disconnects and connects
   troubleshoot IoT Edge devices
Ensure performance and availability
   identify and resolve bottlenecks
   calculate capacity requirements for each service
   create a simulated fleet of devices for performance and stress testing
   troubleshoot message loss
   test manual failover
Implement Security (10-15%)
Implement security for IoT devices and services
   implement device and gateway security
   ensure secure connections
Implement Azure Defender for IoT
   configure an Azure Defender for an IoT agent-based solution
   implement Defender-IoT-micro-agents (security agents)
   configure built-in and custom alerts for IoT Hub