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Microsoft AZ-220 Sample Question Answers

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 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? 

A. Yes 
B. No 

Question # 2

You have an Azure IoT hub that has a hostname of contoso-hub.azure-devices.net and an MCU-based IoT device named Device1. Device1 does NOT support Azure IoT SDKs. You plan to connect Device1 to the IoT hub by using the Message Queuing Telemetry Transport (MQTT) protocol and to authenticate by using X.509 certificates. You need to ensure that Device1 can authenticate to the IoT hub. What should you do?

A. Create an Azure key vault and enable the encryption of data at rest for the IoT hub by using a customermanaged key. 
B. Enable a hardware security module (HSM) on Device1.
 C. From the Azure portal, create an IoT Hub Device Provisioning Service (DPS) instance and add a certificate enrollment for Device1. 
D. Add the DigiCert Baltimore Root Certificate to Device1. 

Question # 3

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?

A. Add the Number of throttling errors metric and archive the logs to an Azure storage account. 
B. Configure diagnostics for Routes and stream the logs to Azure Event Hubs. 
C. Add the Telemetry messages sent metric and archieve the logs to an Azure Storage account. 
D. Configure diagnostics for Connections and send the logs to Azure Log Analytics. 

Question # 4

You enable Azure Security Center for IoT. You need to onboard a device to Azure Security Center. What should you do? 

A. Add the azureiotsecurity module identity to the Azure IoT Hub device identity. 
B. Open incoming TCP port 8883 on the device. 
C. Modify the connection string of the device. 
D. Install an X.509 certificate on the hardware security module (HSM) of the device. 

Question # 5

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: You delete the enrollment group from the Device Provisioning Service. Does the solution meet the goal?

A. Yes 
B. No 

Question # 6

You have an Azure IoT solution that includes a standard tier Azure IoT hub and an IoT device. The device sends one 100-KB device-to-cloud message every hour. You need to calculate the total daily message consumption of the device. What is the total daily message consumption of the device? 

A. 24 
B. 600 
C. 2,400 
D. 4,800 

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 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 IoT solution that includes an Azure IoT hub and an Azure IoT Edge device. You plan to deploy 10 Bluetooth sensors. The sensors do not support MQTT, AMQP, or HTTPS. You need to ensure that all the sensors appear in the IoT hub as a single device. Solution: You configure the IoT Edge device as an IoT Edge identity translation gateway. You configure the sensors to connect to the device. Does this meet the goal? 

A. Yes 
B. No 

Question # 8

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. 

Question # 9

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 

Question # 10

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?

A. Devices 
B. Jobs
 C. Device groups 
D. Analytics 

Question # 11

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. 

Question # 12

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?

A. From the loT hub, set Allow public network access to Disabled. 
B. From the loT hub, start a manual failover.
 C. From the Device Provisioning Service (DPS), unlink the loT hub. 
D. From the loT hub, select Disable fallback route. 

Question # 13

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. 

A. From the Diagnostics settings of the IoT hub, select Archive to a storage account. 
B. Collect the DeviceTelemetry, Connections, and Routes logs. 
C. Collect all metrics. 
D. From the Diagnostics settings of the IoT hub, select Send to Log Analytic. 
E. Collect the JobsOperations, DeviceStreams, and FileUploadOperations logs. 

Question # 14

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 IOTEDGE_DEVICEID environment variable. Does this meet the goal? 

A. Yes 
B. No 

Question # 15

You have the devices shown in the following table.

A. Device1 
B. Device2 
C. Device3 
D. Device4 

Question # 16

You have an Azure IoT hub. You need to enable Azure Defender for IoT on the IoT hub. What should you do? 

A. From the Security settings of the loT hub, select Secure your loT solution. 
B. From the Diagnostics settings of the loT hub, select Add diagnostic setting. 
C. From Defender, add a security policy. 
D. From Defender, configure security alerts.

Question # 17

You need to visualize Azure IoT Hub telemetry data by using Microsoft Power BI. Which service should you connect to the IoT hub? 

A. Azure Event Grid
 B. SendGrid 
C. Azure Stream Analytics 
D. Azure Notification Hubs 

Question # 18

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 the desired properties to the device twin. Does the solution meet the goal?

A. Yes 
B. No 

Question # 19

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 

Question # 20

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 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 

Question # 21

You have an Azure IoT solution that includes an Azure IoT hub, 100 Azure IoT Edge devices, and 500 leaf devices. You need to perform a key rotation across the devices. Which three types of entities should you update? Each Answer presents part of the solution. NOTE: Each correct selection is worth one point.

A. the $edgeHub module identity 
B. the $edgeAgent module identity 
C. the leaf module identities 
D. the IoT Edge device identities 
E. the iothubowner policy credentials 
F. the leaf device identities 

Question # 22

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.

Question # 23

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.

A. Update the IoT Edge runtime. 
B. Install the IoT Edge security daemon. 
C. Run the Deploy-IoTEdge PowerShell cmdlet on the IoT Edge device. 
D. Install the container runtime. 

Question # 24

You have 1,000 devices that connect to an Azure IoT hub. You are performing a scheduled check of deployed IoT devices. You plan to run the following command from the Azure CLI prompt. az iot hub query --hub-name hub1 --query-command "SELECT * FROM devices WHERE connectionState = 'Disconnected'" What does the command return? 

A. the Device Disconnected events
 B. the device twins 
C. the Connections logs 
D. the device credentials

Question # 25

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?

A. Create an Azure function to filter security messages. 
B. Add a configuration to the code of the physical IoT device.
 C. Add configuration details to the device twin object. 
D. Create an azureiotsecurity module twin and add configuration details to the module twin object.

Question # 26

You plan to deploy a standard tier Azure IoT hub. You need to perform an over-the-air (OTA) update on devices that will connect to the IoT hub by using scheduled jobs. What should you use?

A. a device-to-cloud message 
B. the device twin reported properties 
C. a cloud-to-device message 
D. a direct method 

Question # 27

You have an Azure IoT solution that contains an Azure IoT hub and 100 IoT devices. The devices run Windows Server 2016. You need to deploy the Azure Defender for IoT C#-based security agent to the devices. What should you do first?

A. On the devices, initialize Trusted Platform Module (TPM).
 B. From the loT hub. create a system-assigned managed identity. 
C. From the loT hub. create a security module for the devices. 
D. On the devices, set the PowerShell execution policy to Restricted.

Question # 28

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? 

A. Yes 
B. No 

Question # 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 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. Does this meet the goal?

A. Yes 
B. No 

Question # 30

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?

A. one unit of the B1 tier 
B. one unit of the free tier 
C. one unit of the S1 tier 
D. one unit of the S2 tier 

Question # 31

You have an existing Azure IoT hub. You use IoT Hub jobs to schedule long running tasks on connected devices. Which two operations do the IoT Hub jobs support directly? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point. 

A. Trigger Azure functions. 
B. Invoke direct methods.
 C. Update desired properties. 
D. Send cloud-to-device messages. 
E. Disable IoT device registry entries. 

Question # 32

You need to route events in Azure Digital Twins to a downstream service for additional processing. Which type of output endpoint can you use?

A. Azure Event Hubs 
B. Azure Queue storage 
C. Microsoft Power Bl 
D. Azure Table storage 

Question # 33

You have an Azure IoT solution. You need to create a digital twin model. Which language should you use?

A. XHTML 
B. DTDL 
C. YAML 
D. XML

Question # 34

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. 

A. Configure File upload for each IoT hub. Configure the device to send a file to an Azure Storage container that contains the device name and status message. 
B. Add the following message enrichments: Name = iotHubName Value = $twin.tag.location Endpoint = MessageAlert 
C. Create an IoT Hub routing rule that has a data source of Device Twin Change Events and select the endpoint for MessageAlerts. 
D. Add the following message enrichments: Name = iotHubName Value = $iothubname Endpoint = MessageAlert
E. Create an IoT Hub routing rule that has a data source of Device Telemetry Messages and select the endpoint for MessageAlerts. 

Question # 35

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

A. $event.p1.String = 'abc' 
B. $event.p2 = 'abc' 
C. $event['p1'] != NULL 
D. $event.p4.p5 = 0.0

Question # 36

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?

A. Static configuration (via enrollment list only) 
B. Lowest latency 
C. Evenly weighted distribution 
D. Custom (Use Azure Function) 

Question # 37

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 IoT solution that includes an Azure IoT hub and an Azure IoT Edge device. You plan to deploy 10 Bluetooth sensors. The sensors do not support MQTT, AMQP, or HTTPS. You need to ensure that all the sensors appear in the IoT hub as a single device. Solution: You configure the sensors to connect directly to the IoT hub. Does this meet the goal? 

A. Yes 
B. No 

Question # 38

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 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 connecting to the IoT hub. Solution: You disconnect the Device Provisioning Service from the IoT hub. Does this meet the goal? 

A. Yes 
B. No 

Question # 39

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? 

A. Yes 
B. No 

Question # 40

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? 

A. From 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 
B. Create 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 
C. From 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 
D. Create 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 

Question # 41

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.

A. X.509 certificates 
B. Trusted Platform Module (TPM) 2.0 
C. Trusted Platform Module (TPM) 1.2 
D. Symmetric key 
E. Device Identity Composition Engine (DICE) D18912E1457D5D1DDCBD40AB3BF70D5D