CompTIA Cloud+ Practice Test

In which cloud service model does the provider manage the application and infrastructure?

1. Infrastructure as a Service (IaaS)

2. Platform as a Service (PaaS)

3. Software as a Service (SaaS)

4. Function as a Service (FaaS)

The correct answer is: Software as a Service (SaaS)

In the Software as a Service (SaaS) model, the provider is responsible for managing both the application and the underlying infrastructure. This means that users access the software over the internet, typically through a web browser, without needing to install or maintain the applications themselves. The service provider takes care of all aspects of the service, including application updates, security, and the hardware that runs the applications. This model allows businesses to use applications without needing to invest in their own hardware or worry about operating system and software maintenance, which can greatly simplify IT operations. Common examples of SaaS include applications like Google Workspace, Microsoft Office 365, and Salesforce, where the user simply consumes the service while the provider handles all the backend management and resources needed to run the software. In contrast, the other models like IaaS, PaaS, and FaaS involve varying levels of user responsibility for application management and infrastructure. In IaaS, users manage their own applications while utilizing the virtualized infrastructure provided by the service. PaaS provides a platform allowing users to build applications without dealing with the complexity of managing the underlying hardware and software layers, but still requires some application-level management from the user. FaaS focuses on deploying code in response