Microsoft AZ-220 Exam Practice Test Instant Access

Question 1

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

You have a Standard tier Azure IoT hub and a fleet of IoT devices.

The devices connect to the IoT hub by using either Message Queuing Telemetry Transport (MQTT) or Advanced Message Queuing Protocol (AMQP).

You need to send data to the IoT devices and each device must respond. Each device will require three minutes to process the data and respond.

Solution: You use direct methods and check the response.

Does this meet the goal?

AYes

BNo

Answer : B

IoT Hub provides three options for device apps to expose functionality to a back-end app:

Twin's desired properties for long-running commands intended to put the device into a certain desired state. For example, set the telemetry send interval to 30 minutes.

Direct methods for communications that require immediate confirmation of the result. Direct methods are often used for interactive control of devices such as turning on a fan.

Cloud-to-device messages for one-way notifications to the device app.

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-c2d-guidance

Question 2

You have an Azure IoT solution.

You need to test that the solution remains functional if IoT Hub is affected by a regional outage.

What should you do?

AFrom the loT hub, set Allow public network access to Disabled.

BFrom the loT hub, start a manual failover.

CFrom the Device Provisioning Service (DPS), unlink the loT hub.

DFrom the loT hub, select Disable fallback route.

Answer : B

Manual failover is a feature of the IoT Hub service that allows customers to failover their hub's operations from a primary region to the corresponding Azure geo-paired region. Manual failover can be done in the event of a regional disaster or an extended service outage. You can also perform a planned failover to test your disaster recovery capabilities, although we recommend using a test IoT hub rather than one running in production.

https://docs.microsoft.com/en-us/azure/iot-hub/tutorial-manual-failover

Question 3

You have an Azure subscription that contains an Azure loT hub named Hubl and an Azure loT Edge device named Devicel.

You need to configure Device1 to operate in extended offline mode and to support modifying the configuration of modules deployed to Device1 while the device is offline.

Solution: From Azure Cloud Shell, you run the following Azure CLI command.

ai lot edge set-nodules --device-id Device1 --hub-nane Hub1 --content deployment.json

Does this meet the goal?

AYes

BNo

Answer : A

Question 4

You need to visualize Azure IoT Hub telemetry data by using Microsoft Power BI.

Which service should you connect to the IoT hub?

AAzure Event Grid

BSendGrid

CAzure Stream Analytics

DAzure Notification Hubs

Answer : C

You can use Microsoft Power BI to visualize real-time sensor data that your Azure IoT hub receives. To do so, you configure an Azure Stream Analytics job to consume the data from IoT Hub and route it to a dataset in Power BI.

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-live-data-visualization-in-power-bi

Question 5

You have an Azure loT solution that includes an Azure loT hub and a Device Provisioning Service instance.

Several enrolled devices are stolen.

You need to prevent the stolen devices from connecting to the loT solution. The solution must prevent the devices from re-enrollment and must be implemented as soon as possible.

What should you do?

ADelete the devices from the 10T hub.

BDisable the device enrollments in the Device Provisioning Service and delete the devices from the IoT hub.

CDisable the devices in the loT hub and delete the devices from the loT hob.

DDelete the device enrollments from the Device Provisioning Service.

Answer : D

Question 6

You have an Azure loT Edge device configured as a transparent gateway.

You need to define a connection string for a leaf device that uses symmetric key authentication.

Which parameters should you specify?

ADeviceId, HostName, Gateway Hostname, and SharedAccessKey

BDeviceld, Endpoint, SharedAccessKeyName and CertificateThumbprint

CDeviceld. Endpoint. GatewayHostName and SharedAccessKeyName

DHostName, Endpoint, GatewayHostName and CertificateThumbprint

Answer : A

Question 7

You need to route events in Azure Digital Twins to a downstream service for additional processing.

Which type of output endpoint can you use?

AAzure Event Hubs

BAzure Queue storage

CMicrosoft Power Bl

DAzure Table storage

Answer : A

Create an endpoint for Azure Digital Twins.

These are the supported types of endpoints that you can create for your instance:

Event Grid

Event Hubs

Service Bus

Note: In Azure Digital Twins, you can route event notifications to downstream services or connected compute resources. This is done by first setting up endpoints that can receive the events. You can then create event routes that specify which events generated by Azure Digital Twins are delivered to which endpoints.

https://docs.microsoft.com/en-us/azure/digital-twins/how-to-manage-routes

Microsoft Azure IoT Developer AZ-220 Exam Practice Test