Most Azure services normally follow the below lifecycle. First, they are deployed in private preview.
They are released in public preview.
And then finally they are released in General availability.
Is this true for the lifecycle for an Azure service?

Answer options:

A.Yes
B.No

Answer – A 
This is generally the case for new products on the Azure platform. 
So, first Azure allows customers to try out products in the private preview. For the product, the customer would fill up a form. And then Microsoft would make the product available for preview for just the customer. 
Next, the service would be available in public preview based on a selection criterion. 
And then finally the service would be available to the general public. 
For more information on updates to the Azure platform, please visit the below URL- 

https://azure.microsoft.com/en-us/updates