As part of an IoT solution, you have to deploy image recognition logic to certain field devices, to complete computation-intensive tasks locally. The devices are already registered in the IoT Hub as edge devices. Your task is to go on with their configuration and deploy the runtime logic. You have to deploy 3 interdependent custom modules to your device. 
Which two properties should you configure in the deployment manifest to have your device operate properly?

Answer options:

A.startupOrder in the custom modules
B.StartupOrder in the EdgeHub module
C.routes property of EdgeHub module
D.startupOrder of the EdgeAgent module
E.Configuration.id in of the EdgeAgent module

Correct Answers: A and C
Option A is CORRECT because the startupOrder desired property of the modules must be set to determine the order the IoT Edge agent should start the modules when they are first deployed.
Option B is incorrect because the startupOrder is a desired property of the EdgeAgent and the modules. It is not applicable for EdgeHub.
Option C is CORRECT because it is the IoT Edge hub that orchestrates the communication between other modules, IoT Hub, and leaf devices. The edgeHub module twin contains the desired property route that defines how messages flow within a deployment.
Option D is incorrect because The edgeAgent module doesn`t have a startup order parameter. After all, it always starts first.
Option E is incorrect because this property is set byIoT Hub when the manifest is applied during the deployment. It is not part of a deployment manifest.
References: 

https://docs.microsoft.com/en-us/azure/iot-edge/module-composition?view=iotedge-2018-06
https://docs.microsoft.com/en-us/azure/iot-edge/module-edgeagent-edgehub?view=iotedge-2018-06