Which cloud service model provisions virtual machines and network infrastructure?

Which cloud service model provisions virtual machines and network infrastructure?

• A. Platform as a Service (PaaS)
• B. Function as a Service (FaaS)
• C. Infrastructure as a Service (IaaS)
• D. Software as a Service (SaaS)

Answer: (C)

Provisioning virtual machines and the network infrastructure is what Infrastructure as a Service provides. In this model, the cloud provider supplies the fundamental computing resources—virtual machines, storage, and virtual networks—and handles the underlying hardware and virtualization layer. The user controls the operating systems, middleware, and applications running on those machines, while the provider manages the hardware, virtualization, and basic networking to scale as needed. This is different from other models: Platform as a Service gives you a managed platform with runtimes and services but not direct VM control; Function as a Service runs code without managing servers; Software as a Service delivers complete applications with minimal infrastructure management. Therefore, the option that provisions virtual machines and network infrastructure is Infrastructure as a Service.

Provisioning virtual machines and the network infrastructure is what Infrastructure as a Service provides. In this model, the cloud provider supplies the fundamental computing resources—virtual machines, storage, and virtual networks—and handles the underlying hardware and virtualization layer. The user controls the operating systems, middleware, and applications running on those machines, while the provider manages the hardware, virtualization, and basic networking to scale as needed. This is different from other models: Platform as a Service gives you a managed platform with runtimes and services but not direct VM control; Function as a Service runs code without managing servers; Software as a Service delivers complete applications with minimal infrastructure management. Therefore, the option that provisions virtual machines and network infrastructure is Infrastructure as a Service.