Which service model provides virtual machines and other abstracted hardware and operating systems that may be controlled through a service API?

Which service model provides virtual machines and other abstracted hardware and operating systems that may be controlled through a service API?

• A. SaaS
• B. IDaaS
• C. CaaS
• D. Infrastructure as a Service (IaaS)

Answer: (D)

Cloud service models define how much control you have over computing resources. The description—virtual machines and other abstracted hardware and operating systems that can be controlled through a service API—fits Infrastructure as a Service. In IaaS, the provider manages the physical hardware and virtualization layer, while you provision and manage virtual machines, networks, and storage, typically via APIs. This differs from software-as-a-service, which delivers ready-to-use applications; container-as-a-service, which centers on containers rather than full VMs; and identity-as-a-service, which focuses on authentication and identity management.

Cloud service models define how much control you have over computing resources. The description—virtual machines and other abstracted hardware and operating systems that can be controlled through a service API—fits Infrastructure as a Service. In IaaS, the provider manages the physical hardware and virtualization layer, while you provision and manage virtual machines, networks, and storage, typically via APIs. This differs from software-as-a-service, which delivers ready-to-use applications; container-as-a-service, which centers on containers rather than full VMs; and identity-as-a-service, which focuses on authentication and identity management.