Which Cloud Model primarily uses databases to store data?

The cloud model that primarily uses databases to store data is Database as a Service (DBaaS). This model is specifically designed to provide a fully managed database solution, allowing users to access, manage, and use databases without the complexities of configuring and maintaining the underlying hardware and software infrastructure.

DBaaS solutions are typically hosted in the cloud, and they automate various administrative tasks such as backups, scaling, and security, enabling users to focus more on their applications rather than database management. By providing a user-friendly interface and APIs for interaction, DBaaS allows developers and organizations to efficiently manage large volumes of data without the need for in-depth database administration skills.

In contrast, Software as a Service (SaaS) involves delivering software applications over the internet, while Platform as a Service (PaaS) provides a platform for developers to build, deploy, and manage applications without worrying about the underlying infrastructure. Infrastructure as a Service (IaaS) delivers virtualized computing resources over the internet, allowing users to handle all aspects of the infrastructure, which includes but is not limited to databases. DBaaS is distinctly focused on providing database services, making it the correct choice for this question.