AZ-220 Microsoft Azure IoT Developer Questions and Answers

The IoT Edge security manager provides a safe framework for security service extensions through host-level modules. The IoT Edge security manager include

• Ensure safe operation of client agents for services including Device Update for IoT Hub and Azure Defender for IoT.

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Step 1: From Microsoft Visual Studio Code,…

The Azure IoT Tools extension provides project templates for all supported IoT Edge module languages in Visual Studio Code. These templates have all the files and code that you need to deploy a working module to test IoT Edge, or give you a starting point to customize the template with your own business logic.

Step 2: Build and push the module to Azure Container Registry

Build and push your solution. Review the module code and the deployment. Then build the SampleModule container image and push it to your container registry.

Step 3: Create a deployment for the IoT Edge device.

Verify that the built container images are stored in your container registry, then deploy the modules to the device.

When you create a Time Series Insights Preview pay-as-you-go (PAYG) SKU environment, you create two Azure resources:

An Azure Storage general-purpose V1 blob account for cold data storage.

An Azure Time Series Insights Preview environment that can be configured for warm data storage.

Scenario: You discover connectivity issues between the IoT gateway devices and iothub1, which cause IoT devices to lose connectivity and messages.

To log device connection events and errors, turn on diagnostics for IoT Hub. We recommend turning on these logs as early as possible, because if diagnostic logs aren't enabled, when device disconnects occur, you won't have any information to troubleshoot the problem with.

Step 1:

1.Sign in to the Azure portal.

2.Browse to your IoT hub.

3.Select Diagnostics settings.

4.Select Turn on diagnostics.

5.Enable Connections logs to be collected.

6.For easier analysis, turn on Send to Log Analytics (see pricing).

Step 2:

Set up alerts for device disconnect at scale

To get alerts when devices disconnect, configure alerts on the Connected devices (preview) metric.

Scenario: POV Requirements

Ensure that all message content during this phase is human readable to simplify debugging.

Avro uses a binary format, so it is not human readable.

The more lightweight JSON (Javascript object notation) has become a popular alternative to XML for various reasons. A couple obvious ones are:

Less verbose- XML uses more words than necessary

JSON is faster- Parsing XML software is slow and cumbersome.

Step 1: Provision Time Series Insights

Select Provision new IoT Hub to create a new IoT hub.

Step 2: Route telemetry from IoT Hub to a custom event.

Step 3: Add a data access policy to Time Series Insights for the dashboard web app

Scenario: Requirements. Pilot Requirements

During the pilot phase, devices will be deployed to 10 offices. Each office will have up to 1,000 devices.

During this phase, you will add Azure Time Series Insights in parallel to Stream Analytics to support real-time graphs and queries in a dashboard web app.

The pilot deployment must minimize operating costs.