Microsoft AZ-220 Exam Questions Instant Access

Question 1

You are developing an Azure IoT Central application.

You add a new custom device template to the application.

You need to add a fixed location value to the device template. The value must be updated by the physical IoT device, read-only to device operators, and not graphed by IoT Central.

What should you add to the device template?

Aa Location property

Ba Location telemetry

Ca Cloud property

Answer : A

For example, a builder can create a device template for a connected fan that has the following characteristics:

Sends temperature telemetry

Sends location property

https://docs.microsoft.com/en-us/azure/iot-central/core/howto-set-up-template

Question 2

You have an Azure IoT solution that includes an Azure IoT Hub named Hub1 and an Azure IoT Edge device named Edge1. Edge1 connects to Hub1.

You need to deploy a temperature module to Edge1. What should you do?

AFrom the Azure portal, navigate to Hub1 and select IoT Edge. Select Edge1, and then select Manage Child Devices. From a Bash prompt, run the following command:
az iot edge set-modules -device-id Edge1 -hub-name Hub1 -content C:
\deploymentMan1.json

BCreate an IoT Edge deployment manifest that specifies the temperature module and the route to
$upstream. From a Bush prompt, run the following command:
az iot hub monitor-events-device-id Edge1 -hub-name Hub1

CFrom the Azure portal, navigate to Hub1 and select IoT Edge. Select Edge1, select Device Twin, and then set the deployment manifest as a desired property. From a Bash prompt, run the following command
az iot hub monitor-events-device-id Edge1 -hub-name Hub1

DCreate an IoT Edge deployment manifest that specifies the temperature module and the route to
$upstream. From a Bush prompt, run the following command:
az iot edge set-modules -device-id Edge1 -hub-name Hub1 -content C:
\deploymentMan1.json

Answer : D

You deploy modules to your device by applying the deployment manifest that you configured with the module information.

Change directories into the folder where your deployment manifest is saved. If you used one of the VS Code IoT Edge templates, use the deployment.json file in the config folder of your solution directory and not the deployment.template.json file.

Use the following command to apply the configuration to an IoT Edge device:

az iot edge set-modules --device-id [device id] --hub-name [hub name] --content [file path] Reference:

https://docs.microsoft.com/en-us/azure/iot-edge/how-to-deploy-modules-cli

Question 3

You have an IoT device that has the following configurations:

Hardware: Raspberry Pi Operating system: Raspbian

You need to deploy Azure IoT Edge to the device.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

AUpdate the IoT Edge runtime.

BInstall the IoT Edge security daemon.

CRun the Deploy-IoTEdge PowerShell cmdlet on the IoT Edge device.

DInstall the container runtime.

Answer : A, B

The Azure IoT Edge runtime is what turns a device into an IoT Edge device. The runtime can be deployed on devices as small as a Raspberry Pi or as large as an industrial server.

The IoT Edge security daemon provides and maintains security standards on the IoT Edge device. The daemon starts on every boot and bootstraps the device by starting the rest of the IoT Edge runtime.

https://docs.microsoft.com/en-us/azure/iot-edge/how-to-install-iot-edge

Question 4

You have an Azure IoT hub that uses a Device Provisioning Service instance to automate the deployment of Azure IoT Edge devices.

The IoT Edge devices have a Trusted Platform Module (TPM) 2.0 chip.

From the Azure portal, you plan to add an individual enrollment to the Device Provisioning Service that will use the TPM of the IoT Edge devices as the attestation mechanism.

Which detail should you obtain before you can create the enrollment.

Athe scope ID and the Device Provisioning Service endpoint

Bthe primary key of the Device Provisioning Service shared access policy and the global device endpoint

Cthe X.509 device certificate and the certificate chain

Dthe endorsement key and the registration ID

Answer : D

The TPM simulator's Registration ID and the Endorsement key, are used when you create an individual enrollment for your device.

https://docs.microsoft.com/en-us/azure/iot-edge/how-to-auto-provision-simulated-device-linux

Question 5

You have 20 devices that connect to an Azure IoT hub.

You open Azure Monitor as shown in the exhibit. (Click the Exhibit tab.)

You discover that telemetry is not being received from five IoT devices.

You need to identify the names of the devices that are not generating telemetry and visualize the dat

a. What should you do first?

AAdd the Number of throttling errors metric and archive the logs to an Azure storage account.

BConfigure diagnostics for Routes and stream the logs to Azure Event Hubs.

CAdd the Telemetry messages sent metric and archieve the logs to an Azure Storage account.

DConfigure diagnostics for Connections and send the logs to Azure Log Analytics.

Answer : D

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.

Browse to your IoT hub.

Select Diagnostics settings.

Select Turn on diagnostics.

Enable Connections logs to be collected.

For easier analysis, turn on Send to Log Analytics

https://docs.microsoft.com/bs-cyrl-ba/azure/Iot-hub/iot-hub-troubleshoot-connectivity

Question 6

You need to the configure the device parameters to meet the device requirements. Which file should you update on each device?

A/etc/sensors3.conf

B/etc/host.conf

C/etc/aziot/edged/config.d

D/etc/aziot/config.toml

Answer : D

Question 7

You plan to deploy Azure Time Series Insights.

What should you create on iothub1 before you deploy Time Series Insights?

Aa new message route

Ba new consumer group

Ca new shared access policy

Dan IP filter rule

Answer : B

Create a dedicated consumer group in the IoT hub for the Time Series Insights environment to consume from. Each Time Series Insights event source must have its own dedicated consumer group that isn't shared with any other consumer. If multiple readers consume events from the same consumer group, all readers are likely to exhibit failures.

https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-add-an-event-source- iothub

Microsoft Azure IoT Developer AZ-220 Exam Questions