What provides a platform for developers to build and deploy applications without worrying about infrastructure?

What provides a platform for developers to build and deploy applications without worrying about infrastructure?

• A. IaaS
• B. SaaS
• C. Platform as a Service (PaaS)
• D. Application Streaming

Answer: (C)

Platform as a Service lets developers build, test, and deploy applications without managing the underlying infrastructure. It provides the runtime environment, frameworks, libraries, and middleware, along with automated deployment, scaling, load balancing, and monitoring. The platform also handles operating system maintenance, security patches, and resource management, so you can focus on writing code and business logic rather than provisioning servers or configuring servers and runtimes. You typically get integrated development tools, CI/CD pipelines, and access to data services like managed databases, all within the same layer.

Examples you might have seen include services like Heroku, Google App Engine, AWS Elastic Beanstalk, and Azure App Service. In contrast, infrastructure as a service offers raw servers and networking that you must configure and maintain yourself; software as a service provides ready-to-use applications for end users; and application streaming is about delivering software to run on client devices rather than providing a development platform.