For easier management of your IoT infrastructure, you decide to use the Azure IoT Central platform. As the first step, you are going to create templates for the different types of devices you have so that it can be used later for connecting real devices in a manageable way. You start defining a template for a vibration sensor attached to a generator. The device must be able to report if the machinery is running, and it should be able to get restarted remotely. 
Which sections should you include in the device template?

Answer options:

A.“Property” for the run-state; “Command” for the restart
B.“Property” for the run-state; “Component” for the restart
C.“Attribute” for the run-state; “Telemetry” for the restart
D.“Cloud property” for the rud-state; “Command” for the restart

Correct Answer: A
Option A is CORRECT because the “Properties” in the device template can be used by devices to report statuses, pre-set limits etc. A “Command” must be defined if you want to instruct your device to execute a task it is capable of (“Reboot” is a typical example).
Option B is incorrect because the “Component” section is a collection of device capabilities. You have to add a “Command” section to be able to send cloud-to-device instructions.
Option C is incorrect because “Attribute” is not a valid section for device templates; section “Telemetry” defines the stream of data sent by the device regularly (e.g. vibration values).
Option D is incorrect because cloud properties only exist in the IoT Central application and are not sent to, or received from, a device, i.e. not suitable for status reports.
Reference: 

https://docs.microsoft.com/en-us/azure/iot-central/core/howto-set-up-template