What does SaaS stand for?

• A. Software-as-a-Service
• B. Platform-as-a-Service
• C. Infrastructure-as-a-Service
• D. Network-as-a-Service

Answer: (A)

SaaS means software that runs on a provider’s servers and is accessed over the internet, usually through a web browser, with users paying a subscription or per-user fee. This captures the idea that the software itself is delivered “as a service,” rather than being installed and maintained on the customer’s own hardware. The other models describe different layers: Platform-as-a-Service gives you a development and deployment environment to build apps on, Infrastructure-as-a-Service provides raw computing resources like virtual machines and storage, and Network-as-a-Service covers renting network connectivity and related services. So the full form that matches SaaS is Software-as-a-Service.