AZ-220 Online Practice Questions and Answers

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 IoT hub, you change the credentials for the shared access policy of the IoT devices.

Does the solution meet the goal?

A. Yes

B. No

You have an Azure IoT hub that uses a Device Provisioning Service instance.

You create a new individual device enrollment that uses symmetric key attestation.

Which detail from the enrollment is required to auto provision the device by using the Device Provisioning Service?

A. the registration ID of the enrollment

B. the primary key of the enrollment

C. the device identity of the IoT hub

D. the hostname of the IoT hub

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?

A. the scope ID and the Device Provisioning Service endpoint

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

C. the X.509 device certificate and the certificate chain

D. the endorsement key and the registration ID

You have 1,000 IoT devices that connect to an Azure IoT hub.

Each device has a property tag named city that is used to store the location of the device.

You need to update the properties on all the devices located at an office in the city of Seattle as quickly as possible. Any new devices in the Seattle office that are added to the IoT hub must receive the updated properties also.

What should you do?

A. From Automatic Device Management, create an IoT device configuration.

B. From the IoT hub, generate a query for the target devices.

C. Create a scheduled job by using the IoT Hub service SDKs.

D. Deploy an Azure IoT Edge transparent gateway to the Seattle office and deploy an Azure Stream Analytics edge job.

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.

A. mcr.microsoft.com/azureiotedge-simulated-temperature-sensor:1.0

B. mcr.microsoft.com/azureiotedge-agent:1.0

C. mcr.microsoft.com/iotedgedev:2.0

D. mycr.azurecr.io/temperature-module:latest

E. mcr.microsoft.com/azureiotedge-hub:1.0

You have an Azure Stream Analytics job that connects to an Azure IoT hub named Hub1445 as a streaming data source. Hub1445 is configured as shown in the exhibit.

The Stream Analytics job fails to receive any messages from the IoT hub. What should you do to resolve the issue?

A. Change the Route1 route query to true.

B. Enable the Route3 route.

C. Disable the Route2 route.

D. Enable the fallback route.

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?

A. Routes

B. DeviceTelemetry

C. Connections

D. C2DCommands

You have an Azure IoT solution that includes a basic tier Azure IoT hub named Hub1 and a Raspberry Pi device named Device1. Device1 connects to Hub1.

You back up Device1 and restore the backup to a new Raspberry Pi device.

When you start the new Raspberry Pi device, you receive the following error message in the diagnostic logs of Hub1: "409002 LinkCreationConflict."

You need to ensure that Device1 and the new Raspberry Pi device can run simultaneously without error.

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

NOTE: Each correct selection is worth one point.

A. On the new Raspberry Pi device, modify the connection string.

B. From Hub1, modify the device shared access policy.

C. Upgrade Hub1 to the standard tier.

D. From Hub1, create a new consumer group.

E. From Hub1, create a new IoT device.

You have an Azure IoT solution that includes an Azure IoT hub.

You plan to deploy 10,000 IoT devices.

You need to validate the performance of the IoT solution while 10,000 concurrently connected devices stream telemetry. The solution must minimize effort.

What should you deploy?

A. an Azure IoT Device Simulation from Azure IoT Solution Accelerator

B. an Azure function, an IoT Hub device SDK, and a timer trigger

C. Azure IoT Central application and a template for the retail industry

D. an Azure IoT Edge gateway configured as a protocol translation gateway

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 20 IoT devices deployed across two floors of a building. The devices on the first floor must be set to 60 degrees. The devices on the second floor must be set to 80 degrees.

The device twins are configured to use a tag that identifies the floor on which the twins are located.

You create the following automatic configuration for the devices on the first floor.

You create the following automatic configuration for the devices on the second floor.

The IoT devices on the first floor report that the temperature is set to 80 degrees.

You need to ensure that the first-floor devices are set to the correct temperature.

Solution: In the automatic configuration for the second-floor devices, you set targetCondition to "tags.floor='second'".

Does this meet the goal?

A. Yes

B. No

You have an Azure subscription that contains an Azure Time Series Insights environment. The environment has the properties shown in the following table.

You need to create a D.

Which two time series expressions can be correctly used as part of the query? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

A. $event.p1.String = 'abc'

B. $event.p2 = 'abc'

C. $event['p1'] != NULL

D. $event.p4.p5 = 0.0

You have an Azure IoT hub and 15,000 IoT devices that monitor temperature. The IoT hub has four partitions. Each IoT device sends a 1-KB message every five seconds.

You plan to use Azure Stream Analytics to process the telemetry stream and generate an alert when temperatures exceed a defined threshold.

You need to recommend the minimum number of streaming units to configure for Stream Analytics.

What should you recommend?

A. 1

B. 3

C. 6

D. 12

DRAG DROP

You have an Azure IoT Edge device named Edge1.

You need to configure the module container to link the module storage to the host storage.

How should you configure the deployment manifest? To answer, drag the appropriate keys to the correct targets. Each key may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view

content.

NOTE: Each correct selection is worth one point.

Select and Place:

HOTSPOT

You need to configure Azure IoT Edge module routing to ensure that modules route traffic as shown in the following exhibit.

How should you complete the IoT Edge module routes? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Hot Area:

HOTSPOT

You have an Azure loT hub You have four Azure loT Edge devices and. The device twin code shown in the following table.

You have three deployments and the deployment code shown in the following table.

For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point.

Hot Area: