Microsoft AZ-220 Exam Questions Instant Access

Question 1

You have an Azure IoT hub.

You need to check whether the IoT hub was affected by an outage.

What should you select in the Azure portal? To answer, select the appropriate option in the answer area.

NOTE: Each correct selection is worth one point.

AResource health

BMetrics

CAlerts

DDiagnostic settings

Answer : A

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-azure-service-health-integration

Question 2

You have an Azure loT Central solution

You need to verify that telemetry messages from devices arrive to loT Central.

What should you use?

Athe Azure loT explorer

Bthe az command in Azure CLI

CAzure Service Bus Explorer

Dthe Azure loT Tools for VS Code extension pack

Answer : B

Question 3

You are troubleshooting an Azure IoT hub.

You discover that some telemetry messages are dropped before they reach downstream processing. You suspect that IoT Hub throttling is the root cause.

Which log in the Diagnostics settings of the IoT hub should you use to capture the throttling error events?

ARoutes

BDeviceTelemetry

CConnections

DC2DCommands

Answer : B

The device telemetry category tracks errors that occur at the IoT hub and are related to the telemetry pipeline. This category includes errors that occur when sending telemetry events (such as throttling) and receiving telemetry events (such as unauthorized reader). This category cannot catch errors caused by code running on the device itself.

Note: The metric d2c.telemetry.ingress.sendThrottle is the number of throttling errors due to device throughput throttles.

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-monitor-resource-health

Question 4

You create an Azure IoT hub by running the following command.

az iot hub create --resource-group MyResourceGroup --name MyIotHub --sku B1 -- location westus --partition-count 4

What does MylotHub support?

ADevice Provisioning Service

Bcloud-to-device messaging

CAzure IoT Edge

Ddevice twins

Answer : A

The Device Provisioning Service is included in the Basic Tiers (such as B1).

Incorrect Answers:

B, C, D: The Standard tier is needed for cloud-to-device messaging, Azure IoT Edge, and device twins.

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-scaling

Question 5

You develop a custom Azure IoT Edge module named temperature-module.

You publish temperature-module to a private container registry named mycr.azurecr.io

You need to build a deployment manifest for the IoT Edge device that will run temperature-module.

Which three container images should you define in the manifest? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Amcr.microsoft.com/azureiotedge-simulated-temperature-sensor:1.0

Bmcr.microsoft.com/azureiotedge-agent:1.0

Cmcr.microsoft.com/iotedgedev:2.0

Dmycr.azurecr.io/temperature-module:latest

Emcr.microsoft.com/azureiotedge-hub:1.0

Answer : B, D, E

Each IoT Edge device runs at least two modules: $edgeAgent and $edgeHub, which are part of the IoT Edge runtime. IoT Edge device can run multiple additional modules for any number of processes. Use a deployment manifest to tell your device which modules to install and how to configure them to work together.

https://docs.microsoft.com/en-us/azure/iot-edge/module-composition

Question 6

You have an Azure IoT hub that has 1,000 registered devices.

You create an Azure logic app.

You need to send Device Connected and Device Disconnected events in real time to the logic app.

What should you do?

AFrom the Message routing blade of the loT hub. add a route. Route DeviceLifecycleEvents to an Azure Service Bus queue.

BFrom the Diagnostic settings blade of the loT hub. add a diagnostic setting. Route the connection logs to a Log Analytics workspace.

CFrom the Events blade of the loThub. add an event subscription. Configure the Filter to Event Types setting and route the events to a webhook.

Answer : C

https://sandervandevelde.wordpress.com/2019/12/20/subscribe-your-iothub-to-eventgrid-as-event-source/

Question 7

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this question, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You have an Azure IoT solution that includes an Azure IoT hub, a Device Provisioning Service instance, and 1,000 connected IoT devices.

All the IoT devices are provisioned automatically by using one enrollment group. You need to temporarily disable the IoT devices from the connecting to the IoT hub.

Solution: From the Device Provisioning Service, you disable the enrollment group, and you disable device entries in the identity registry of the IoT hub to which the IoT devices are provisioned.

Does the solution meet the goal?

AYes

BNo

Answer : A

You may find it necessary to deprovision devices that were previously auto-provisioned through the Device Provisioning Service.

In general, deprovisioning a device involves two steps:

1. Disenroll the device from your provisioning service, to prevent future auto-provisioning. Depending on whether you want to revoke access temporarily or permanently, you may want to either disable or delete an enrollment entry.

2. Deregister the device from your IoT Hub, to prevent future communications and data transfer. Again, you can temporarily disable or permanently delete the device's entry in the identity registry for the IoT Hub where it was provisioned.

https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-unprovision-devices

Microsoft Azure IoT Developer AZ-220 Exam Questions