Microsoft Azure Fundamentals AZ-900 Practice Question

Using Office 365 for email and collaboration is a prime example of Software as a Service (SaaS). In this model, the company accesses and uses cloud-based applications over the internet without worrying about the underlying infrastructure, application development, or maintenance. The service provider manages everything, allowing users to focus on using the software for their business needs. The other options involve more control over the infrastructure or platform, characteristic of IaaS or PaaS.