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Download Microsoft Azure IoT Developer Exam Dumps
NEW QUESTION # 34
You enable Azure Security Center for IoT.
You need to onboard a device to Azure Security Center. What should you do?
- A. Modify the connection string of the device.
- B. Install an X.509 certificate on the hardware security module (HSM) of the device.
- C. Open incoming TCP port 8883 on the device.
- D. Add the azureiotsecurity module identity to the Azure IoT Hub device identity.
Answer: D
Explanation:
Explanation
Use the following workflow to deploy and test your Azure Security Center for IoT security agents:
1.Enable Azure Security Center for IoT service to your IoT Hub
2.If your IoT Hub has no registered devices, Register a new device.
3.Create an azureiotsecurity security module for your devices.
Azure Security Center for IoT makes use of the module twin mechanism and maintains a security module twin named azureiotsecurity for each of your devices.
Note: To manually create a new azureiotsecurity module twin for a device use the following instructions:
1.In your IoT Hub, locate and select the device you wish to create a security module twin for.
2.Click on your device, and then on Add module identity.
3.In the Module Identity Name field, enter azureiotsecurity.
4.Click Save.
Reference:
https://docs.microsoft.com/en-us/azure/asc-for-iot/quickstart-create-security-twin
NEW QUESTION # 35
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 IoT hub, you change the credentials for the shared access policy of the IoT devices.
Does the solution meet the goal?
- A. Yes
- B. No
Answer: B
Explanation:
Explanation/Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-unprovision-devices
NEW QUESTION # 36
You need to store the real-time alerts generated by Stream Analytics to meet the technical requirements.
Which type of Stream Analytics output should you configure?
- A. Azure SQL Database
- B. Azure Blob storage
- C. Azure Cosmos DB
- D. Microsoft Power BI
Answer: B
Explanation:
When you create a Time Series Insights Preview pay-as-you-go (PAYG) SKU environment, you create two Azure resources:
An Azure Storage general-purpose V1 blob account for cold data storage.
An Azure Time Series Insights Preview environment that can be configured for warm data storage.
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-update-storage-ingress
Topic 2, Contoso
To start the case study
To display the first question on this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.
Existing Environment. Current State of Development
Contoso produces a set of Bluetooth sensors that read the temperature and humidity. The sensors connect to IoT gateway devices that relay the data.
All the IoT gateway devices connect to an Azure IoT hub named iothub1.
Existing Environment. Device Twin
You plan to implement device twins by using the following JSON sample.
Existing Environment. Azure Stream Analytics
Each room will have between three to five sensors that will generate readings that are sent to a single IoT gateway device. The IoT gateway device will forward all the readings to iothub1 at intervals of between 10 and 60 seconds.
You plan to use a gateway pattern so that each IoT gateway device will have its own IoT Hub device identity.
You draft the following query, which is missing the GROUP BY clause.
SELECT
AVG(temperature),
System.TimeStamp() AS AsaTime
FROM
Iothub
You plan to use a 30-second period to calculate the average temperature reading of the sensors.
You plan to minimize latency between the condition reported by the sensors and the corresponding alert issued by the Stream Analytics job.
Existing Environment. Device Messages
The IoT gateway devices will send messages that contain the following JSON data whenever the temperature exceeds a specified threshold.
The level property will be used to route the messages to an Azure Service Bus queue endpoint named criticalep.
Existing Environment. Issues
You discover connectivity issues between the IoT gateway devices and iothub1, which cause IoT devices to lose connectivity and messages.
Requirements. Planning Changes
Contoso plans to make the following changes:
Use Stream Analytics to process and view data.
Use Azure Time Series Insights to visualize data.
Implement a system to sync device statuses and required settings.
Add extra information to messages by using message enrichment.
Create a notification system to send an alert if a condition exceeds a specified threshold.
Implement a system to identify what causes the intermittent connection issues and lost messages.
Requirements. Technical Requirements
Contoso must meet the following requirements:
Use the built-in functions of IoT Hub whenever possible.
Minimize hardware and software costs whenever possible.
Minimize administrative effort to provision devices at scale.
Implement a system to trace message flow to and from iothub1.
Minimize the amount of custom coding required to implement the planned changes.
Prevent read operations from being negatively affected when you implement additional services.
NEW QUESTION # 37
You have an Azure IoT solution that includes an Azure IoT hub.
You receive a root certification authority (CA) certificate from the security department at your company.
You need to configure the IoT hub to use the root CA certificate.
Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-hub/iot-hub-security-x509-get-started
NEW QUESTION # 38
You need to configure Stream Analytics to meet the POV requirements.
What are two ways to achieve the goal? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. Create a Stream Analytics module, and then deploy the module to all IoT Edge devices in the fleet.
- B. Route telemetry to an Azure Blob storage custom endpoint, and then configure the Blob storage as a reference input for Stream Analytics.
- C. From IoT Hub, create a custom event hub endpoint, and then configure the endpoint as an input to Stream Analytics.
- D. Create an input in Stream Analytics that uses the built-in events endpoint of IoT Hub as the source.
Answer: C,D
Explanation:
Explanation/Reference:
Process and manage data
Question Set 3
NEW QUESTION # 39
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