Which cloud model best abstracts infrastructure to let you focus on developing and deploying applications?

• A. IaaS
• B. PaaS
• C. SaaS
• D. Edge computing

Answer: (B)

Platform as a Service is the cloud model that abstracts away the underlying infrastructure so you can focus on developing and deploying applications. It provides the runtime environment, middleware, databases, and deployment tools, while handling provisioning, scaling, and maintenance behind the scenes. You just write your code and configure your app, and the platform takes care of the rest, reducing operational overhead and speeding up development.

In contrast, infrastructure as a service gives you virtual machines and networks to manage, so you still handle the operating system, runtime, and deployment details yourself. Software as a service delivers ready-to-use applications, not development platforms. Edge computing isn’t a cloud service model focused on application development; it’s about running computing closer to users or data sources for lower latency.