Which service model allows the storage of data and applications via the internet?

The correct choice pertains to Software as a Service (SaaS), which is a cloud computing service model that enables users to access applications and data via the internet. In this model, the service provider hosts the software and manages everything from infrastructure to application maintenance, making it easily accessible over the web.

With SaaS, users can use software applications without needing to install or maintain them on their local devices. This model offers a high degree of convenience and flexibility, allowing users to access services from any internet-connected device, which is particularly beneficial for collaboration and remote work. Notably, popular examples of SaaS providers include applications like Google Workspace and Microsoft 365, where both data storage and application functionalities are provided online.

The other service models, while related to cloud computing, serve different purposes. Infrastructure as a Service (IaaS) focuses on providing virtualized computing resources over the internet, while Platform as a Service (PaaS) offers a platform for developers to build and deploy applications without handling the underlying infrastructure. Network as a Service (NaaS) refers to the provision of network services over the internet, which does not encompass the storage of applications or data in the same manner as SaaS.