Which cloud service model delivers software applications over the internet?

Which cloud service model delivers software applications over the internet?

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

Answer: (B)

Delivering software applications over the internet means you use the program through a web browser without installing it locally. This is the essence of Software as a Service: the provider hosts the application, handles maintenance, updates, and infrastructure, and you access it via the internet, usually paying on a subscription. You don’t manage servers, runtimes, or storage—that work is done by the service provider. This contrasts with IaaS, where you rent virtual machines and manage the OS and software yourself; PaaS, where you’re given a platform to develop and deploy your own apps while the provider handles the underlying runtime and middleware; and CaaS, which centers on container management rather than full software applications. So the model that fits “software applications over the internet” is Software as a Service.

Delivering software applications over the internet means you use the program through a web browser without installing it locally. This is the essence of Software as a Service: the provider hosts the application, handles maintenance, updates, and infrastructure, and you access it via the internet, usually paying on a subscription. You don’t manage servers, runtimes, or storage—that work is done by the service provider. This contrasts with IaaS, where you rent virtual machines and manage the OS and software yourself; PaaS, where you’re given a platform to develop and deploy your own apps while the provider handles the underlying runtime and middleware; and CaaS, which centers on container management rather than full software applications. So the model that fits “software applications over the internet” is Software as a Service.