Free AZ-220: Microsoft Azure IoT Developer Exam Questions and Answers

You plan to deploy Azure Time Series Insights. What should you create on iothub1 before you deploy Time Series Insights?

• AA. a new message route
• BB. a new consumer group
• CC. a new shared access policy
• DD. an IP filter rule

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.

• AA. Configure File upload for each IoT hu
• BB. Configure the device to send a file to an Azure Storage container that contains the device name and status message.
• CC. Add the following message enrichments: Name = iotHubNameValue = $twin.tag.location Endpoint = MessageAlerts. Create an IoT Hub routing rule that has a data source of Device Twin Change Events and select the endpoint for MessageAlerts.
• DD. Add the following message enrichments: Name = iotHubName Value = $iothubnameEndpoint = MessageAlerts. Create an IoT Hub routing rule that has a data source of Device Telemetry Messages and select the endpoint for MessageAlerts.

You have an existing Azure IoT hub. You need to connect physical IoT devices to the IoT hub. You are connecting the devices through a firewall that allows only port 443 and port 80. Which three communication protocols can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

Select 3 answers.

• AA. MQTT over WebSocket
• BB. AMQP
• CC. AMQP over WebSocket
• DD. MQTT
• EE. HTTPS

You have 10 IoT devices that connect to an Azure IoT hub named Hub1. From Azure Cloud Shell, you run az iot hub monitor-events --hub-name Hub1 and receive the following error message: "az iot hub: 'monitor-events' is not in the 'az iot hub' command group. See 'az iot hub --help'." You need to ensure that you can run the command successfully. What should you run first?

• AA. az iot hub monitor-feedback --hub-name Hub1
• BB. az iot hub generate-sas-token --hub-name Hub1
• CC. az iot hub configuration list --hub-name Hub1
• DD. az extension add -name azure-cli-iot-ext

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?

• AA. a self-signed X.509 certificate
• BB. the random string of alphanumeric characters
• CC. the HMACSHA256 hash of the device's registration ID
• DD. the endorsement key of the device's Trusted Platform Module (TPM)

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?

• AA. Yes
• BB. No

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?

• AA. 24
• BB. 600
• CC. 2,400
• DD. 4,800

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.

Select 2 answers.

• AA. The ipV4 tag is a restricted twin property that is unavailable for message enrichment.
• BB. A standard tier IoT hub does not support device twin properties in message enrichments.
• CC. The device sending the message has no device twin.
• DD. Message enrichment cannot be added to messages going to a built-in endpoint.
• EE. The device twin path used for the value of the enrichment does not exist.
• FF. The device twin property value used for message enrichment is set to "$twin.tags.ipV4".

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.

Select 3 answers.

• AA. mcr.microsoft.com/azureiotedge-simulated-temperature-sensor:1.0
• BB. mcr.microsoft.com/azureiotedge-agent:1.0
• CC. mcr.microsoft.com/iotedgedev:2.0
• DD. mycr.azurecr.io/temperature-module:latest
• EE. mcr.microsoft.com/azureiotedge-hub:1.0

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?

• AA. Yes
• BB. No