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Microsoft Azure IoT Developer Sample Questions (Q97-Q102):

NEW QUESTION # 97
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, 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 connecting to the IoT hub.
Solution: You disconnect the Device Provisioning Service from the IoT hub.
Does this meet the goal?

  • A. No
  • B. Yes

Answer: A Explanation:
Instead, from the Device Provisioning Service, you disable the enrollment group, and you disable device entries in the identity registry of the IoT hub to which the IoT devices are provisioned.
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-unprovision-devices
NEW QUESTION # 98
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 use an Azure policy to apply tags to a resource group. Does the solution meet the goal?

  • A. No
  • B. Yes

Answer: A Explanation:
Explanation
Instead add the desired properties to the device twin.
Note: Device Twins are used to synchronize state between an IoT solution's cloud service and its devices.
Each device's twin exposes a set of desired properties and reported properties. The cloud service populates the desired properties with values it wishes to send to the device. When a device connects it requests and/or subscribes for its desired properties and acts on them.
Reference:
https://azure.microsoft.com/sv-se/blog/deep-dive-into-azure-iot-hub-notifications-and-device-twin/
NEW QUESTION # 99
You use Azure Security Center in an Azure IoT solution.
You need to exclude some security events. The solution must minimize development effort. What should you do?

  • A. Add configuration details to the device twin object.
  • B. Create an Azure function to filter security messages.
  • C. Add a configuration to the code of the physical IoT device.
  • D. Create an azureiotsecurity module twin and add configuration details to the module twin object.

Answer: D Explanation:
Explanation
Properties related to every Azure Security Center for IoT security agent are located in the agent configuration object, within the desired properties section, of the azureiotsecurity module.
To modify the configuration, create and modify this object inside the azureiotsecurity module twin identity.
Note: Azure Security Center for IoT's security agent twin configuration object is a JSON format object. The configuration object is a set of controllable properties that you can define to control the behavior of the agent.
These configurations help you customize the agent for each scenario required. For example, automatically excluding some events, or keeping power consumption to a minimal level are possible by configuring these properties.
Reference:
https://docs.microsoft.com/en-us/azure/asc-for-iot/how-to-agent-configuration
NEW QUESTION # 100
You have an Azure loT solution that includes an Azure loT hub and a Device Provisioning Service instance.
Several enrolled devices are stolen.
You need to prevent the stolen devices from connecting to the loT solution. The solution must prevent the devices from re-enrollment and must be implemented as soon as possible.
What should you do?

  • A. Disable the devices in the loT hub and delete the devices from the loT hob.
  • B. Delete the devices from the 10T hub.
  • C. Disable the device enrollments in the Device Provisioning Service and delete the devices from the IoT hub.
  • D. Delete the device enrollments from the Device Provisioning Service.

Answer: D
NEW QUESTION # 101
During the POV phase, telemetry from IoT Hub stops flowing to the hot path. The cold path continues to work.
What should you do to restore the hot path?

  • A. Disable the fallback route.
  • B. Create an explicit route for the hot path.
  • C. Modify cold-route to send only some telemetry data to the cold path.
  • D. Run the Test all routes action.

Answer: B Explanation:
Explanation
Explanation/Reference:
Process and manage data
Question Set 3
NEW QUESTION # 102
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