In Platform as a Service (PaaS), what is provided?

• A. Hardware and software infrastructure for the development of business applications
• B. User-facing software applications for sale
• C. End-user devices
• D. Customer support services

Answer: (A)

PaaS delivers the platform layer that provides the hardware and software infrastructure developers use to build, test, and deploy business applications. It covers the runtime environment, development tools, databases, middleware, and hosting capabilities managed by the provider, so teams can focus on coding rather than managing servers, operating systems, or runtime components. The other options describe services outside this layer: user-facing applications for sale are typical of SaaS; end-user devices are hardware; and customer support services aren’t what PaaS centers on.