Which statement best describes Software as a Service (SaaS)?

• A. Business application delivered over the Internet in which users interact with the application through a web browser.
• B. Infrastructure is managed and operated exclusively for one company.
• C. A combination of public and private cloud environments.
• D. An infrastructure shared by several organizations from a community.

Answer: (A)

The idea being tested is how software is delivered and accessed. In Software as a Service, the application is hosted by the provider in the cloud and you use it over the Internet, typically through a web browser. You don’t install or manage the software on your own devices or servers; the vendor handles hosting, maintenance, security, and updates. This model enables quick deployment, scalable usage, and a subscription-based cost.

The other options describe different cloud concepts. A private cloud describes infrastructure managed for a single organization, not software accessed over a browser. A hybrid cloud refers to a mix of public and private cloud environments. A community cloud describes infrastructure shared by multiple organizations with common concerns. These aren’t SaaS.