Which cloud service model allows for the usage of virtual machines over the internet?

Infrastructure as a Service (IaaS) is the correct answer because it provides fundamental computing resources over the internet, including virtual machines (VMs). In an IaaS model, users are able to rent IT infrastructure—such as servers, storage, networks, and operating systems—on a pay-as-you-go basis. Through this model, customers can deploy and run their own software, which can include applications and operating systems, all while utilizing virtual servers that run on physical hardware managed by the IaaS provider.

This flexibility is a key advantage of IaaS as it allows organizations to quickly scale resources up or down as needed, without the requirement of investing in physical hardware. Additionally, users have the control over their virtual machines, including the ability to configure settings to meet their specific performance and security needs.

In contrast, Platform as a Service (PaaS) provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the underlying infrastructure. Software as a Service (SaaS) delivers software applications over the internet on a subscription basis, eliminating the need for organizations to install and run applications on their own computers. Network as a Service (NaaS) focuses on providing network services rather than