AZ-220 · Question #74
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…
The correct answer is A. Yes. IoT Hub provides three options for device apps to expose functionality to a back-end app: Twin's desired properties for long-running commands intended to put the device into a certain desired state. For example, set the telemetry send interval to 30 minutes. Direct methods for…
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Options
- AYes
- BNo
How the community answered
(37 responses)- A81% (30)
- B19% (7)
Explanation
IoT Hub provides three options for device apps to expose functionality to a back-end app: Twin's desired properties for long-running commands intended to put the device into a certain desired state. For example, set the telemetry send interval to 30 minutes. Direct methods for communications that require immediate confirmation of the result. Direct methods are often used for interactive control of devices such as turning on a fan. Cloud-to-device messages for one-way notifications to the device app. https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-c2d-guidance
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