Connect 20 Sensors to Azure IoT Central via Transparent Edge Gateway
Question
You are operating an IoT infrastructure of a large manufacturing facility where, for technological reasons, the temperature and humidity of the workspaces must be strictly controlled.
The facilities are already equipped with hundreds of sensors but now you need to add 20 sensors and connect them via a transparent edge gateway to the cloud.
The existing infrastructure is managed through IoT Central and it must be used in the future, as well.
When implementing this scenario, which of the following statements is true?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answer: D.
Option A is incorrectbecause yes, in a transparent gateway scenario, the downstream devices need to be created in IoT Central, i.e.
an appropriate device template is needed.
Option B is incorrectbecause yes, in a transparent gateway scenario, the downstream devices need to be created in IoT Central.
Option C is incorrect because it is the translation gateway scenario where devices connect to specific (translation) modules hosted on the gateway device.
In this particular case, the devices connect to the edge device itself.
Option D is CORRECTbecause in transparent gateway scenarios the leaf devices connect to the gateway device itself.
Diagram:
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List of all devices connected to this gateway. To add a downstream device, locate the device instance and connect it.
2
Devices > EdgeGateway > EdgeGateway - edgegateway
SS EdgeGateway - edgegateway
Downstream Devices
Downstream devices
Modules Manage Raw data
3 Connect © Block =D Rename £ Edit template [i] Delete
Last data received: 2/19/2021, 12:24:47 PM | Status: Provisioned
Device display name
‘Thermostat - thermostat2
‘Thermostat - thermostat!
Device template
Thermostat
Thermostat
Module
Device ID
thermostat2
thermostat](https://eaeastus2.blob.core.windows.net/optimizedimages/static/images/Microsoft-Azure-IoT-Developer-(AZ-220)/answer/imgckeditor_103.png)
Reference:
In order to add 20 new sensors and connect them via a transparent edge gateway to the cloud, the following points should be considered:
A. For downstream devices you don't need a device template in IoT Central
This statement is not true. Device templates are essential in IoT Central as they define the properties, telemetry, and other characteristics of the device. Without a device template, IoT Central will not be able to understand the data being sent by the device and will not be able to display it on the dashboard.
B. Downstream device identities don't need to be created in IoT Central
This statement is also not true. In order to connect a device to IoT Central, a device identity must be created. This is done by registering the device in the IoT Central application and assigning it a unique identity, such as a device ID or a device key. Without a device identity, the device will not be able to communicate with IoT Central.
C. The devices must connect to the Thermostat module on the edge device
This statement may or may not be true, depending on the specific implementation. If the edge gateway has a Thermostat module that is designed to receive data from the sensors, then the devices should connect to this module. However, if there is no such module or if the sensors are not designed to send data to the Thermostat module, then this statement would not be true.
D. The devices must connect to the edge device, not to its modules.
This statement is not true. The sensors should be connected to the appropriate module on the edge gateway that is designed to receive data from them. The modules on the edge gateway are responsible for processing the data and sending it to the cloud, so it is important that the sensors are connected to the correct module.
In summary, options A and B are incorrect, and option C may or may not be correct depending on the specific implementation. Option D is incorrect, and the sensors should be connected to the appropriate module on the edge gateway.