AZ-220 Exam QuestionsBrowse all questions from this exam

AZ-220 Exam - Question 27


HOTSPOT -

You have an Azure IoT Central application that has a custom device template.

You need to configure the device template to support the following activities:

✑ Return the reported power consumption.

✑ Configure the desired fan speed.

✑ Run the device reset routine.

✑ Read the fan serial number.

Which option should you use for each activity? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Hot Area:

Exam AZ-220 Question 27
Show Answer
Correct Answer:
Exam AZ-220 Question 27

A device template in Azure IoT Central is a blueprint that defines the:

✑ Telemetry a device sends to IoT Central.

✑ Properties a device synchronizes with IoT Central.

✑ Commands that IoT Central calls on a device.

Box 1: Measurement -

Telemetry/measurement is a stream of values sent from the device, typically from a sensor. For example, a sensor might report the ambient temperature.

Box 2: Properties -

The template can provide a writeable fan speed property

Properties represent point-in-time values. For example, a device can use a property to report the target temperature it's trying to reach. You can set writeable properties from IoT Central.

Box 3: Properties -

Box 4: Command -

You can call device commands from IoT Central. Commands optionally pass parameters to the device and receive a response from the device. For example, you can call a command to reboot a device in 10 seconds.

Reference:

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

Discussion

3 comments
Sign in to comment
Arockia
Nov 8, 2021

The question Options are wrong. The correct answer is: a. Return the reported power consumption --> Telemetry b. Configure the desired fan speed --> Properties c. Read the fan serial number --> Cloud Properties d. Run the device reset routine --> command

dedede
Jun 1, 2021

I am not sure but "Configure the desired fan speed" sounds like "Settings" answer. Am I right?

exam67
Jun 7, 2021

No, because there is no "settings" when it comes to device template "interfaces" https://docs.microsoft.com/en-us/azure/iot-central/core/concepts-device-templates#interfaces

ridhz
Jun 28, 2021

I am not sure but "Run device reset routine" sounds like a "Settings" answer. Am I right?