Which cloud service model allows customers to rent IT infrastructure components?

The cloud service model that allows customers to rent IT infrastructure components is Infrastructure as a Service (IaaS). This model provides virtualized computing resources over the internet, enabling organizations to scale their IT infrastructure according to their needs without the costs and complexities associated with owning and maintaining physical hardware.

With IaaS, customers can rent resources such as virtual machines, storage, and networks. They only pay for what they use, which provides flexibility and efficiency in managing workloads. This model is particularly beneficial for businesses looking to quickly deploy servers, run applications, or manage workloads without investing heavily in physical infrastructure.

In contrast, Software as a Service (SaaS) delivers software applications via the cloud, and users access these applications online without the need to manage the underlying infrastructure. Platform as a Service (PaaS) provides a platform that allows developers to build, deploy, and manage applications without worrying about the infrastructure underneath. Function as a Service (FaaS) focuses on executing code in response to events, without managing servers or infrastructure directly. Each of these models serves a specific purpose within the cloud ecosystem, but only IaaS directly involves renting IT infrastructure components.