Microsoft Microsoft Certifications AZ-220 Questions & Answers

• 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.

  Correct Answer: BC

  Consider using jobs when you need to schedule and track progress any of the following activities on a set of devices:

  1.

  Invoke direct methods

  2.

  Update desired properties

  3.

  Update tags

  Reference: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-jobs

• Question 32:

  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?

  A. authenticationType''KeyBased''

  B. ''disableDeviceSAS'' : true''

  C. ''disableModuleSAS'': ''true''

  D. ''minTIsversion'':''1.2''

  Correct Answer: A

• Question 33:

  You have an Azure loT hub that has 500 registered devices.

  You need to send device twin change events to Azure Service Bus in real time

  Which blade of the loT hub should you configure?

  A. Events

  B. Metrics

  C. Message routing

  D. Diagnostic settings

  Correct Answer: C

• Question 34:

  You have an Azure loT Central solution

  You need to verify that telemetry messages from devices arrive to loT Central. What should you use?

  A. the Azure loT explorer

  B. the az command in Azure CLI

  C. Azure Service Bus Explorer

  D. the Azure loT Tools for VS Code extension pack

  Correct Answer: B

• Question 35:

  You have an Azure loT hub named hub1 and five IoT devices. The loT devices connect to hub1 and send data that is formatted by using a proprietary binary format.

  You need to convert the data to JSON before the data is sent to a downstream service.

  The solution must minimize administrative effort.

  What should you use?

  A. an Azure Service Bus trigger

  B. a message enrichment

  C. an Azure loT Central application

  D. an Azure function

  Correct Answer: A

• Question 36:

  You have an Azure loT solution.

  You plan to register an Azure loT Edge device by using X.509 self-signed certificates.

  You need to provide the thumbprint for the primary and secondary certificates.

  Solution: You generate a 64-hex character SHA256 hash for the certificates.

  Does this meet the goal?

  A. Yes

  B. No

  Correct Answer: B

• Question 37:

  You have an Azure IoT solution that contains an Azure loT hub and Azure loT 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?

  A. AllowedMetrics

  B. LogAnalyticsWorkspaceId

  C. UploadTarget

  D. MetricsEndpointsCSVc

  Correct Answer: C

• Question 38:

  You have an Azure subscription that contains the resources shown in the following table.

  

  You create a group enrollment in DPS1 and enroll 100 loT devices. Each device is issued a leaf certificate from CAT.

  You need to deprovision a single loT device from the group enrollment.

  The solution must not affect the other devices.

  Solution: You delete the device entry from the device registry of Hub1.

  Does this meet the goal?

  A. Yes

  B. No

  Correct Answer: B

• Question 39:

  You have an Azure loT solution that contains an Azure IoT hub and the Azure IoT Edge gateways shown in the following table.

  

  You have the leaf devices shown in the following table.

  

  The IoT hub receives the messages shown in the following table.

  

  You plan to a deploy a new Azure Time Series Insight environment.

  You need to recommend a Time Series ID property name to ensure that the telemetry of each device will be stored in a separate time series instance.

  What should you recommend?

  A. Device ID

  B. Device ID and Asset ID

  C. Device ID and Gateway ID

  D. Device ID. Asset ID, and Temperature

  Correct Answer: C

• Question 40:

  You have an Azure IoT solution that includes an Azure IoT hub named hub1.

  You plan to deploy an Azure Time Series Insights Gen 2 environment and connect the environment to hub1.

  You need to use the device ID from hub1 as the Time Series ID.

  What should you set as the Time Series ID when creating the environment?

  A. device-id

  B. connection-device-id

  C. iothub-connection-device-id

  D. deviceId

  Correct Answer: C

  Your Time Series ID property is iothub-connection-device-id, dt-subject.

  As an IoT Plug and Play user, for your Time Series ID, specify a composite key that consists of iothub-connection-device-id and dt-subject. The IoT hub adds these system properties that contain your IoT Plug and Play device ID and your device component names, respectively.

  Reference: https://docs.microsoft.com/en-us/azure/iot-develop/tutorial-configure-tsi