Microsoft Azure IoT Developer (AZ-220) Free Practice Test
Question 1
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?
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?
Correct Answer: A
Question 2
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.
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.
Correct Answer:
Reference:
https://docs.microsoft.com/en-us/stream-analytics-query/time-management-azure-stream-analytics
Question 3
You have sites that contain loT devices as shown in the following table.
You have an Azure subscription.
You need to create the Azure loT Edge devices shown in the following table.
Which type of gateway pattern should you use for each loT Edge device? To answer, drag the appropriate gateway pattern types to the correct devices. Each pattern type 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.
You have an Azure subscription.
You need to create the Azure loT Edge devices shown in the following table.
Which type of gateway pattern should you use for each loT Edge device? To answer, drag the appropriate gateway pattern types to the correct devices. Each pattern type 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.
Correct Answer:
Question 4
You have an Azure IoT hub.
You need to check whether the IoT hub was affected by an outage.
What should you select in the Azure portal? To answer, select the appropriate option in the answer area.
NOTE: Each correct selection is worth one point.
You need to check whether the IoT hub was affected by an outage.
What should you select in the Azure portal? To answer, select the appropriate option in the answer area.
NOTE: Each correct selection is worth one point.
Correct Answer: A
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 5
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?
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?
Correct Answer: B
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 6
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.
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.
Correct Answer:
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-use-create-options
Question 7
You deploy an Azure Digital Twins instance.
You are developing client code that will modify digital twin data.
You run the client code and receive the following response for an Azure Digital Twins API.
403 (Forbidden)
You need to configure access control for the Azure Digital Twins instance to ensure that the client code can modify the data.
Which role should you assign?
You are developing client code that will modify digital twin data.
You run the client code and receive the following response for an Azure Digital Twins API.
403 (Forbidden)
You need to configure access control for the Azure Digital Twins instance to ensure that the client code can modify the data.
Which role should you assign?
Correct Answer: D
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 8
You need to design a module deployment strategy that meets the device requirements. What should you create?
Correct Answer: A
Question 9
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 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.
Correct Answer: A,C
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 10
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 dat a. What should you do first?
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 dat a. What should you do first?
Correct Answer: C
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 11
You have the devices shown in the following table.
You are implementing a proof of concept (POC) for an Azure IoT solution.
You need to deploy an Azure IoT Edge device as part of the POC.
On which two devices can you deploy IOT Edge? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
You are implementing a proof of concept (POC) for an Azure IoT solution.
You need to deploy an Azure IoT Edge device as part of the POC.
On which two devices can you deploy IOT Edge? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
Correct Answer: B,D
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
Question 12
You are building an Azure loT solution that will include an Azure loT hub and will process environmental data for a multi-story building by using Azure Stream Analytics. The loT devices for the solution will provide the following data:
* Temperature
* Building
* Room
* Floor
You need to identify which data formats the loT devices can use to send the data as an array. What should you identify?
* Temperature
* Building
* Room
* Floor
You need to identify which data formats the loT devices can use to send the data as an array. What should you identify?
Correct Answer: D
Question 13
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.
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.
Correct Answer: B,C
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).
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 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 cloud-to-device messages and watch the cloud-to-device feedback endpoint for successful acknowledgement.
Does this meet the goal?
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 cloud-to-device messages and watch the cloud-to-device feedback endpoint for successful acknowledgement.
Does this meet the goal?
Correct Answer: A
Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).