| Exam Code | AZ-220 |
| Exam Name | Microsoft Azure IoT Developer |
| Questions | 204 Questions Answers With Explanation |
| Update Date | July 11,2024 |
| Price |
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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
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.
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.
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.
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
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
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
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 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
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
