What are the two kinds of Azure Web Service roles?
A cloud service role is a set of managed and load-balanced virtual machines that work together to perform tasks. The two kinds of Azure Web Service roles are:
Web Roles
It is a cloud service role that is used to run web applications developed in programming languages supported by IIS (Internet Information Services) like ASP.NET, PHP, etc.
It automatically deploys and hosts applications through the users IIS
Worker Roles
It runs applications and other tasks that don't require IIS. It performs supporting background tasks along with web roles
It doesn’t use IIS and runs user applications standalone
🔗Reference : stackoverflow.com
🔗Source: Azure Interview Questions and Answers