Final answer:
Azure monitor begins collecting data after you enable diagnostics.
Step-by-step explanation:
Azure monitor begins collecting data after you enable diagnostics.
When you enable diagnostics for a resource in Azure, you are allowing Azure Monitor to start collecting data and monitoring that resource. This includes capturing metrics, logs, and other telemetry data.
Once you enable diagnostics, Azure Monitor will automatically start collecting data and storing it in the configured metrics and logs data stores. You do not need to create these data stores beforehand.