You have an Azure IoT hub.
You need to recommend a solution to scale the IoT hub automatically. What should you include in the recommendation?

• A.Create an SMS alert in IoT Hub for the Total number of messages used metric.
• B.Create an Azure function that retrieves the quota metrics of the IoT hub.
• C.Configure autoscaling in Azure Monitor.
• D.Emit custom metrics from the IoT device code and create an Azure Automation runbook alert.

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You need to configure Azure IoT Edge module routing to ensure that modules route traffic as shown in the following exhibit.

How should you complete the IoT Edge module routes? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation
Text, letter Description automatically generated

Box 1: $connectionModuled
Add a route that tells the edge hub to route any message received by the IoT Edge device that was not sent by an IoT Edge module.
Box 2: $upstream
Send messages to $upstream, which passes the messages to the connected IoT Hub.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/tutorial-machine-learning-edge-06-custom-modules

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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.

Correct Answer:

Explanation:
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: Property
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: Settings
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

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You have an Azure IoT solution that includes an Azure IoT hub and 100 Azure IoT Edge devices.
You plan to deploy the IoT Edge devices to external networks. The firewalls of the external networks only allow traffic on port 80 and port 443.
You need to ensure that the devices can connect to the IoT hub. The solution must minimize costs. What should you do?

• A.Configure the devices for extended offline operations.
• B.Configure the upstream protocol of the devices to use MQTT over WebSocket.
• C.Connect the external networks to the IoT solution by using ExpressRoute.
• D.Configure the devices to use an HTTPS proxy.

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You have an IoT device that gathers data in a CSV file named Sensors.csv.
You deploy an Azure IoT hub that is accessible at ContosoHub.azure-devices.net. You need to ensure that Sensors.csv is uploaded to the IoT hub.
Which two actions should you perform? Each correct answer presents part of the solution.

• A.Upload Sensors.csv by using the IoT Hub REST API.
• B.From the Azure subscription, select the IoT hub, select Message routing, and then configure a route to storage.
• C.From the Azure subscription, select the IoT hub, select File upload, and then configure a storage container.
• D.Configure the device to use a GET request to ContosoHub.azure-devices.net/devices/ContosoDevice1/ files/notifications.

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