Which service model involves installing provider-supported applications in the cloud infrastructure, with access to infrastructure, tools, and languages to develop and serve applications?

Which service model involves installing provider-supported applications in the cloud infrastructure, with access to infrastructure, tools, and languages to develop and serve applications?

• A. SaaS
• B. PaaS
• C. IaaS
• D. DaaS

Answer: (B)

This question tests understanding of cloud service models by focusing on the environment that provides a ready-to-use platform for building and deploying apps while the provider manages the underlying infrastructure. Platform as a Service delivers a cloud platform with runtime, development tools, languages, and libraries so you can develop, test, and run applications without worrying about the underlying hardware or operating system. The provider takes care of provisioning compute resources, middleware, scaling, and infrastructure, while you focus on writing code and deploying it. This differs from software as a service, where you simply use applications hosted by the provider with no development or platform access. It also differs from infrastructure as a service, where you’re given raw compute resources and you manage the OS, runtime, and applications yourself. Desktop as a Service, meanwhile, deals with delivering virtual desktops, not a development platform.

This question tests understanding of cloud service models by focusing on the environment that provides a ready-to-use platform for building and deploying apps while the provider manages the underlying infrastructure. Platform as a Service delivers a cloud platform with runtime, development tools, languages, and libraries so you can develop, test, and run applications without worrying about the underlying hardware or operating system. The provider takes care of provisioning compute resources, middleware, scaling, and infrastructure, while you focus on writing code and deploying it.

This differs from software as a service, where you simply use applications hosted by the provider with no development or platform access. It also differs from infrastructure as a service, where you’re given raw compute resources and you manage the OS, runtime, and applications yourself. Desktop as a Service, meanwhile, deals with delivering virtual desktops, not a development platform.