What cloud service model allows the provider to handle physical security and utilities while the customer manages their own operating systems?

The Infrastructure as a Service (IaaS) model allows customers to manage their own operating systems while the cloud service provider is responsible for the underlying physical infrastructure, including physical security, networking, storage, and utilities. With IaaS, customers can deploy their own applications and manage the operating systems and middleware, giving them the flexibility to customize their environments according to their specific needs.

In this model, the provider handles all aspects related to the physical data centers, such as hardware maintenance and physical security measures. This permits customers to focus on higher-level tasks, such as application management, without worrying about the security of the data center itself or the power supply it uses. This separation of responsibilities is a key feature of IaaS, making it a popular option for businesses looking to scale their IT resources without heavy investment in physical infrastructure.

Other service models such as SaaS (Software as a Service) and PaaS (Platform as a Service) do not provide the same level of control over the underlying operating systems as IaaS. SaaS delivers complete software solutions managed entirely by the provider, while PaaS offers a platform for developers to build and deploy applications but typically abstracts away the infrastructure management from the customer. On-site typically refers to physical