Which cloud service model provides on-demand infrastructure resources like computing power and storage, with the provider managing the underlying hardware?

Which cloud service model provides on-demand infrastructure resources like computing power and storage, with the provider managing the underlying hardware?

• A. PaaS
• B. SaaS
• C. IaaS
• D. IDaaS

Answer: (C)

On-demand infrastructure resources like computing power and storage with the provider handling the underlying hardware describes Infrastructure as a Service. In this model you get virtualized resources such as virtual machines, storage, and networking as a service, while the cloud provider takes care of the physical hardware, data centers, power, cooling, and the virtualization layer. You are responsible for installing and managing the operating system, applications, and data, along with security configurations. This is different from platforms where the provider also manages the runtime and development tools (PaaS) or finished software you just use (SaaS). Identity management services (IDaaS) focus on authentication and access control rather than providing infrastructure.

On-demand infrastructure resources like computing power and storage with the provider handling the underlying hardware describes Infrastructure as a Service. In this model you get virtualized resources such as virtual machines, storage, and networking as a service, while the cloud provider takes care of the physical hardware, data centers, power, cooling, and the virtualization layer. You are responsible for installing and managing the operating system, applications, and data, along with security configurations. This is different from platforms where the provider also manages the runtime and development tools (PaaS) or finished software you just use (SaaS). Identity management services (IDaaS) focus on authentication and access control rather than providing infrastructure.