Which service type enables code to run in response to events without managing servers?

Which service type enables code to run in response to events without managing servers?

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

Answer: (C)

Functions as a Service lets you write small pieces of code that run in response to events without managing servers. In this model,You deploy functions and the platform handles provisioning, scaling, and maintaining the underlying infrastructure. They execute when triggered by events such as an HTTP request, a message arriving in a queue, a file being uploaded to storage, or a scheduled timer. You typically pay only for the compute time your function actually uses, and the function remains stateless, scaling automatically to handle bursts. This differs from other service models. Software as a Service provides fully finished software you use, not code you deploy to run in reaction to events. Platform as a Service offers a deployment environment and runtime for applications, but you still manage the app’s logic and lifecycle within a managed platform. Infrastructure as a Service gives you virtual machines or other resources that you configure and manage, including the software you run on them, rather than abstracting away servers entirely.

Functions as a Service lets you write small pieces of code that run in response to events without managing servers. In this model,You deploy functions and the platform handles provisioning, scaling, and maintaining the underlying infrastructure. They execute when triggered by events such as an HTTP request, a message arriving in a queue, a file being uploaded to storage, or a scheduled timer. You typically pay only for the compute time your function actually uses, and the function remains stateless, scaling automatically to handle bursts.

This differs from other service models. Software as a Service provides fully finished software you use, not code you deploy to run in reaction to events. Platform as a Service offers a deployment environment and runtime for applications, but you still manage the app’s logic and lifecycle within a managed platform. Infrastructure as a Service gives you virtual machines or other resources that you configure and manage, including the software you run on them, rather than abstracting away servers entirely.