App Service is a service for hosting web applications, APIs, and mobile backends, while an App Service Plan defines the resources (CPU, memory, storage) available to host these applications.
In the Azure Portal, click "Create a resource", search for "Web App", configure settings like name, subscription, region, and click "Create".
App Service supports a variety of applications including web applications, APIs, mobile backends, and even containers.
Zero downtime deployment in Azure App Service can be achieved by using deployment slots.
App Service is a platform-as-a-service (PaaS) offering from Microsoft Azure that allows developers to build, deploy, and scale web applications and APIs quickly and efficiently without worrying about managing the underlying infrastructure.