Home » Microsoft » AZ-220 v.2 » What should you include in the recommendation?
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.
Correct Answer: B
Explanation/Reference:
Note: IoT Hub is scaled and priced based on an allowed number of messages per day across all devices connected to that IoT Hub. If you exceed the allowed message threshold for your chosen tier and number of units, IoT Hub will begin rejecting new messages. To date, there is no built-in mechanism for automatically scaling an IoT Hub to the next level of capacity if you approach or exceed that threshold.
Reference:
https://docs.microsoft.com/en-us/samples/azure-samples/iot-hub-dotnet-autoscale/iot-hub-dotnet-autoscale/
