What is an advantage of migrating on-premises IIS apps to Azure App Service?

Migrating on-premises IIS applications to Azure App Service offers the advantage of utilizing a Platform as a Service (PaaS) model, which simplifies deployment and management of applications. This model abstracts much of the underlying infrastructure management typically required with traditional hosting environments, allowing developers to focus on building and maintaining their applications rather than on server maintenance and configuration.

As a PaaS, Azure App Service manages resources like the server, networking, and storage behind the scenes. This means that users do not need to worry about patching, scaling, or configuring servers, which can save both time and effort. Additionally, the PaaS approach provides built-in features such as automated backups, load balancing, and security updates, enhancing the reliability and security of applications without the need for extensive management.

While other options may highlight benefits such as scalability and cost-efficiency, they do not encapsulate the significant advantages provided by the PaaS model itself. Utilizing Azure App Service as a PaaS provides a streamlined environment that supports faster development cycles, easier updates, and a high degree of integration with other Azure services, making it highly suitable for hosting modern applications.