CompTIA Cloud+ Practice Test

Which service model is typically responsible for managing the underlying infrastructure in cloud computing?

1. IaaS

2. PaaS

3. SaaS

4. FaaS

The correct answer is: IaaS

The Infrastructure as a Service (IaaS) model is responsible for managing the underlying infrastructure in cloud computing, which includes physical hardware, network resources, storage, and servers. In IaaS, the cloud provider takes care of the underlying physical and virtual infrastructure, allowing users to focus on managing their operating systems, applications, and data. This model offers significant flexibility and scalability for users, as they can provision resources on-demand and customize the infrastructure according to their specific requirements. Users have the ability to control and manage these resources, including configuring server instances and managing storage space, while the service provider ensures that the hardware is maintained, upgraded, and available. In contrast, the other service models such as Platform as a Service (PaaS), Software as a Service (SaaS), and Function as a Service (FaaS) abstract away more of the infrastructure management tasks. PaaS provides a platform allowing users to develop and deploy applications without worrying about the underlying infrastructure. SaaS offers fully functional applications accessed over the internet, eliminating the need for users to manage hardware or software. FaaS focuses on executing specific functions in a serverless environment, further abstracting the infrastructure management. Thus, IaaS is the service model that