Which cloud service model primarily provides virtualized computing resources?

Which cloud service model primarily provides virtualized computing resources?

• A. PaaS provides software platforms for development
• B. SaaS provides software applications over the internet
• C. IaaS provides virtualized computing resources
• D. DaaS provides data hosting

Answer: (C)

Providing virtualized computing resources means delivering the basic building blocks of a computer environment—virtual machines, storage, and networking—over the internet. This is what IaaS offers: you get virtualized compute power, scalable storage, and virtual networks you can configure and manage as needed. Other models sit at a higher level: PaaS gives a development platform and runtime, while SaaS delivers ready-made software applications. Desktop as a Service focuses on virtual desktops rather than the general-purpose compute resources that IaaS provides. So, the model that best fits virtualized computing resources is IaaS.

Providing virtualized computing resources means delivering the basic building blocks of a computer environment—virtual machines, storage, and networking—over the internet. This is what IaaS offers: you get virtualized compute power, scalable storage, and virtual networks you can configure and manage as needed. Other models sit at a higher level: PaaS gives a development platform and runtime, while SaaS delivers ready-made software applications. Desktop as a Service focuses on virtual desktops rather than the general-purpose compute resources that IaaS provides. So, the model that best fits virtualized computing resources is IaaS.