Which is a cloud service model category?

The correct choice pertains to the classification of cloud service models, specifically focusing on Platform as a Service (PaaS). PaaS is a category within the broader framework of cloud computing services, where a third-party provider delivers a platform that facilitates developers to build, deploy, and manage applications without needing to handle the underlying infrastructure. This service model enables organizations to develop applications more efficiently, as it abstracts the complexities associated with the hardware and software stack.

PaaS is particularly beneficial for developers because it provides a range of tools, services, and APIs that streamline the process of application development and deployment. This can include database management, middleware, development frameworks, and business analytics, allowing teams to focus on coding and innovation rather than managing infrastructure.

The other options represent different cloud service models or concepts related to cloud services. For instance, database as a service (DBaaS) and backup as a service (BaaS) are specific types of services that fall under the broader umbrella of cloud computing. XaaS, or anything as a service, is a broader term that encompasses numerous service models but does not denote a specific category on its own. This context helps clarify the distinct nature of PaaS in relation to other cloud service offerings.