Pass the Microsoft AZ-220 Exam 2023 – Best AZ-220 Preparation Material

1. 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.

2. 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.

3. 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?

4. 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?

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?

6. You have 1,000 devices that connect to a standard tier Azure IoT hub.

All the devices are commissioned and send telemetry events to the built-in IoT Hub endpoint. You configure message enrichment on the events endpoint and set the enrichment value to $twin.tags.ipV4.

When you inspect messages on the events endpoint, you discover that all the messages are stamped with a string of "$twin.tags.ipV4".

What are two possible causes of the issue? Each Answer presents a complete solution. NOTE: Each correct selection is worth one point.

7. You have an Azure loT hub.

You need to configure an Azure function that will process loT Hub messages when the messages arrive at the loT hub. The solution must NOT require additional services or solutions deployed.

Which type of trigger should you use?

8. HOTSPOT

You have an Azure subscription that contains an Azure loT hub named Hub1 and the IoT devices shown in the following table.





You have the automatic device configure rations 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.

9. Topic 3, Fabrikam New



Case study

General overview

Fabrikam, Inc. is an international food company that has a main office in London and 250 sites worldwide.

FabRIkam uses a prototype hydroponics loT management system that tracks temperatures and PH levels and adjusts conditions automatically.



Location

The prototype environment is deployed to the main office.



IoT Hub

The management system uses a free tier Azure loT hub.



Devices

The prototype contains the devices shown in the following table.







Each device will use the following:

• A common set of Azure loT Edge modules

• A unique module for each type of sensor or controller

Each device has a device twin. Each device twin contains a tag that identifies the device type. For example, the device twin of Child4 contains a tag of ph. Each device sends 1.440 4-KB messages to the loT hub per day.



Pilot deployment

A pilot of the hydroponics loT management system will be deployed initially to 50 of the company's worldwide sites.



Device Requirements

Fabrikam identifies the following device requirements:

• Cloud-to-device commands will be sent to each primary control device.

• All module communication from the child devices must be routed to the loT hub.

• The parameters of each device type must be configured in the loT Edge container configuration file.

• Device modules must be deployed to all the devices automatically, and then updated automatically. The solution must support targeted deployments by using device twin tags.



Networking Requirements

Fabrikam identifies the following networking requirements:

• Child devices will NOT have internet access.

• The primary control device in each site will have internet access.

• Child devices will communicate with their local primary control device by using the AMQP protocol.



Monitoring Requirements

Fabrikam identifies the following monitoring requirements:

• The number of device-to-cloud telemetry messages sent to the loT hub by the primary control devices must be tracked.

• An email notification must be sent if a message is NOT received from Child4 every 10 minutes.



Technical Requirements

Fabrikam identifies the following technical requirements:

• The solution must support cloud-to-device commands.

• Administrative effort must be minimized whenever possible.

• Hardware and software costs must be minimized whenever possible.

• Access to the loT hub must be restricted to devices that connect from the company's sites.



You need to develop a messaging app that meets the technical requirements.

Which shared access policy should you use?

10. 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 an Azure Stream Analytics job that receives input from an Azure IoT hub and sends the outputs to Azure Blob storage. The job has compatibility level 1.1 and six streaming units.

You have the following query for the job.





You plan to increase the streaming unit count to 12.

You need to optimize the job to take advantage of the additional streaming units and increase the throughput.

Solution: You change the query to the following.





Does this meet the goal?

11. You have 10 devices that connect to an Azure loT hub. Each device has a unique public IP address. The devices are not provisioned through DPS.

You discover an anomaly in messages from two devices.

You need to stop all messages from both devices without affecting the other devices.

Solution: You delete the devices from the loT hub.

Does this meet the goal?

12. 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?

13. You have an Azure subscription

You need to deploy an Azure loT hub by using an Azure Resource Manager (ARM) template. The solution must ensure that the loT hub rejects connections from devices that only support cipher suites that use SHA1.

What should you include in the template?

14. You have an Azure IoT hub.

You need to recommend a solution to scale the IoT hub automatically.

What should you include in the recommendation?

15. You have an Azure IoT solution that includes several Azure IoT hubs.

A new alerting feature was recently added to the IoT devices. The feature uses a new device twin reported property named alertCondition.

You need to send alerts to an Azure Service Bus queue named MessageAlerts. The alerts must include

alertCondition and the name of the IoT hub.

Which two actions should you perform? Each Answer presents part of the solution. NOTE: Each correct selection is worth one point.

16. You have 10 devices that connect to an Azure loT hub. Each device has a unique public IP address. The devices are not provisioned through DPS.

You discover an anomaly in messages from two devices.

You need to stop all messages from both devices without affecting the other devices.

Solution: You create a custom endpoint for the loT hub and configure a message routing query to redirect events from suspicious devices.

Does this meet the goal?

17. What should you do to identify the cause of the connectivity issues?

18. You have an Azure IoT solution that contains an Azure loT hub and Azure 10T Edge devices.

You need to configure the metrics- collector module on the devices to send metrics to the loT hub as device-to-cloud messages.

Which environment variable should you update?

19. You have an existing Azure IoT hub.

You use IoT Hub jobs to schedule long running tasks on connected devices.

Which three operations do the IoT Hub jobs support directly? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

20. DRAG DROP

You have an Azure subscription that contains an Azure loT hub and 100 loT devices.

The devices connect to the loT hub by using the Advanced Message Queuing Protocol (AMQP) protocol and authenticate to the loT hub by using symmetric keys.

You need to configure the SASL PLAIN username for the AMQP connection.

How should you configure the username? To answer, drag the appropriate options to the correct targets. Each option 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.

21. HOTSPOT

You have an Azure Stream Analytics job named Asjob1 that uses the following query.





Asjob1 receives the events 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.

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

You plan to deploy 100 IoT devices.

You need to confirm the identity of the devices by using the Device Provision Service.

Which three device attestation mechanisms can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

23. 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?

24. You have an Azure IoT Central solution that includes multiple IoT devices. The devices report temperature, humidity, and pressure.

You need to export the sensor data captured during a 48-hour period as a CSV file.

What should you use in IoT Central?

25. You have an Azure IoT solution that includes multiple Azure IoT hubs in different geographic locations and a single Device Provision Service instance.

You need to configure device enrollment to assign devices to the appropriate IoT hub based on the following requirements:

✑ The registration ID of the device

✑ The geographic location of the device

The load between the IoT hubs in the same geographic location must be balanced.

What should you use to assign the devices to the IoT hubs?

26. DRAG DROP

You have an instance of Azure Time Series Insights and an Azure IoT hub that receives streaming telemetry from IoT devices.

You need to configure Time Series Insights to receive telemetry from the devices.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

27. HOTSPOT

You create an Azure Stream Analytics job that has the following query.





The job is configured to have an Azure IoT Hub input and an output to an Azure function.

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

28. HOTSPOT

You have an Azure IoT solution that contains the Azure IoT Edge devices shown in the following table.





You have the standard deployments and target conditions shown in the following table.





You have the modules 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.

29. 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 are developing a custom Azure IoT Edge module.

The module needs to identify the device ID of the local device.

Solution: You configure the module to read the ProductInfo property of ModuleClient.

Does this meet the goal?

30. You are developing an Azure IoT solution for a shipping company. The company’s ships will have sensors used for predictive maintenance. Some sensor devices will be MQTT-capable, and others will use Modbus.

Each ship has an internet connection that is available only when the ship is docked.

You create an Azure IoT hub.

You need to implement an IoT solution that uses Azure IoT Edge.

What should you do?

31. 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 data.

What should you do first?

32. You plan to develop modules for an Azure IoT Edge solution.

You need to recommend a development tool that supports the following:

✑ Node.js

✑ Module templates

✑ Development on Linux workstations

What should you recommend?

33. 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 schedule an IoT Hub job to update the twin tags and you query for job progress.

Does this meet the goal?

34. You have an Azure IoT hub.

You need to enable Azure Defender for IoT on the IoT hub.

What should you do?

35. 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?

36. You are configuring a production environment for an Azure IoT solution.

You plan to deploy 1,000 IoT devices. Each device will send one device-to-cloud message every hour. Each message will be 4 KB.

You need to deploy an Azure IoT hub that will support the IoT device deployment.

The solution must meet the following requirements:

✑ Perform bulk device operations such as creating multiple device identities.

✑ Minimize costs

What should you deploy?

37. DRAG DROP

You have an Azure IoT hub.

You plan to attach three types of IoT devices as shown in the following table.





You need to select the appropriate communication protocol for each device.

What should you select? To answer, drag the appropriate protocols to the correct devices. Each protocol 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.

38. HOTSPOT

You have an Azure IoT hub and three Azure IoT Edge devices.

The device twin code for each device is shown in the following table.





A standard automatic deployment is already applied.

You have three layered deployments.

The deployment code for each deployment is 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.

39. DRAG DROP

You have an Azure IoT Central application.

You need to connect IoT devices that use SAS tokens to the application without first registering the devices.

In which order should you perform the actions? To answer, move all actions from the list of actions to the answer area and arrange them in the correct order.

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

You discover that some of the devices fail to send data to the IoT hub.

You need to ensure that you can use Azure Monitor to troubleshoot the device connectivity issues.

Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

41. You have an Azure loT Central solution

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

What should you use?

42. 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 an Azure Stream Analytics job that receives input from an Azure IoT hub and sends the outputs to Azure Blob storage. The job has compatibility level 1.1 and six streaming units.

You have the following query for the job.





You plan to increase the streaming unit count to 12.

You need to optimize the job to take advantage of the additional streaming units and increase the throughput.

Solution: You change the compatibility level of the job to 1.2.

Does this meet the goal?

43. You use Azure Security Center in an Azure IoT solution.

You need to exclude some security events. The solution must minimize development effort.

What should you do?

44. HOTSPOT

You have an Azure IoT Central application that has a custom device template.

You need to configure the device template to support the following activities:

✑ Return the reported power consumption.

✑ Configure the desired fan speed.

✑ Run the device reset routine.

✑ Read the fan serial number.

Which option should you use for each activity? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

45. HOTSPOT

You have four physical loT devices that connect to an Azure loT hub named iothub1.

The devices are configured as 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.

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

Which service should you connect to the IoT hub?

47. DRAG DROP

You deploy an Azure IoT hub.

You need to demonstrate that the IoT hub can receive messages from a device.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

48. 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 devices that connect to an Azure IoT hub. Each device has a fixed GPS location that includes latitude and longitude.

You discover that a device entry in the identity registry of the IoT hub is missing the GPS location.

You need to configure the GPS location for the device entry. The solution must prevent the changes from being propagated to the physical device.

Solution: You use an Azure policy to apply tags to a resource group. Does the solution meet the goal?

49. Topic 2, ADatum



Case Study

This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case . However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.



To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other question on this case study.



At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next sections of the exam. After you begin a new section, you cannot return to this section.



To start the case study

To display the first question on this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.



Requirements. Planned Changes

ADatum is developing an Azure IoT solution to monitor environmental conditions. The IoT solution consists of hardware devices and cloud services. All the devices will communicate directly to Azure IoT Hub.



The hardware devices will be deployed to the branch offices and will collect data about various environmental conditions such as temperature, humidity, air quality, and noise level. The devices will be wired by using Power over Ethernet (PoE) connections.



ADatum is developing the solution in the following three phases: proof of value (POV), pilot, and production.



Requirements. POV Requirements

The POV phase will demonstrate that a technical solution is viable. During this phase, 100 devices will be deployed to the main office and Azure Stream Analytics will be connected to an IoT hub to generate real-time alerts.

Stream Analytics will perform the following processing:

- Calculate the median rate of the telemetry across the entire devices that exceed the median rate by a factor of 4.

- Compare the current telemetry to the specified thresholds and issue alerts when telemetry values are out of range.

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



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.



Requirements. Production Requirements

The production phase will include all the offices.

The production deployment will have one IoT hub in each Azure region. Devices must connect to the IoT hub in their region.



The production phase must meet the following requirements:

- Ensure that the IoT solution can support performance and scale targets.

- Ensure that the IoT solution support up to 1,000 devices per office.

- Minimize operating costs of the IoT solution.



Requirements. Technical Requirements

Datum identifies the following requirements for the planned IoT solution:

- The solution must generate real-time alerts when a fire condition is detected in an office. All the devices in that office must trigger an audible alarm siren within 10 seconds of the alert.

- A dashboard UI must display alerts and the system status in real time and must allow device operators to make adjustments to the system.

- Each device will send hourly updates to IoT Hub. Condition alerts will be sent immediately.

- Multiple types of devices will collect telemetry that has different schemas.

- IoT Hub must perform message routing based on the message body.

- Direct methods must be used for cloud-to-device communication.

- Reports must be provided monthly, quarterly, and annually.

- Stored data queries must be as efficient as possible.

- The device message size will be under 4 KB.

- Development effort must be minimized.



Requirements. Throttle and Quotas

The relevant throttles and quotas for various IoT Hub tiers are shown in the following table.







Requirements. IoT Hub Routing

You plan to implement IoT Hub routing during the POV phase as shown in the following exhibit.







During the POV phase, you connect a device to IoT Hub and start sending telemetry messages.

You need to verify the content of the messages received by IoT Hub during the POV phase.

What should you use?

50. You have an Azure IoT Central application.

You add an IoT device named Oven1 to the application. Oven1 uses an IoT Central template for industrial ovens.

You need to send an email to the managers group at your company as soon as the oven temperature falls below 400 degrees.

Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

51. 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 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 Version to 2.

Does this meet the goal?

52. 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 devices that connect to an Azure IoT hub. Each device has a fixed GPS location that includes latitude and longitude.

You discover that a device entry in the identity registry of the IoT hub is missing the GPS location.

You need to configure the GPS location for the device entry. The solution must prevent the changes from being propagated to the physical device.

Solution: You add tags to the device twin. Does the solution meet the goal?

53. 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.

54. HOTSPOT

You have an Azure IoT hub named Hub1 and an Azure Time Series Insights environment named tsi1. Tsi1 connects to Hub1. The solution has been operational for 6 months.

Tsi1 is configured as shown in the following exhibit.





Hub1 receives 1 million messages per day. Each message is up to 1 KB and is formatted as JSON.

Hub1 has seven days of retained telemetry.

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

55. You have an Azure IoT Edge module named SampleModule that runs on a device named Device1.

You make changes to the code of SampleModule by using Microsoft Visual Studio Code.

You need to push the code to the container registry and then deploy the module to Device1.

Which two actions should you perform from Visual Studio Code? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

56. DRAG DROP

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

You receive a root certification authority (CA) certificate from the security department at your company.

You need to configure the IoT hub to use the root CA certificate.

Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

57. From the Device Provisioning Service, you create an enrollment as shown in the exhibit. (Click the Exhibit tab.)





You need to deploy a new IoT device.

What should you use as the device identity during attestation?