Which cloud service model enables end users to access email via a web browser without managing the underlying server?

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

Answer: (B)

Accessing email through a web browser without handling servers is a hallmark of software as a service. In SaaS, the provider hosts the application, maintains the infrastructure, handles updates and security, and you simply use the software over the internet. Email services like Gmail or Outlook on the web illustrate this: you don’t provision servers, install or patch software, or manage scaling—the service is delivered to you ready to use via a browser. In contrast, IaaS involves managing your own servers and OS, PaaS provides a platform to develop and run apps while you handle the app itself, and DaaS delivers a virtual desktop rather than a web-based email app. So SaaS best fits the scenario.