Which cloud service model offers fundamental computing, storage, and networking resources on-demand?

💡 Explanation:

Infrastructure as a Service (IaaS) is the cloud model that provides the fundamental, virtualized computing resources—servers (compute), storage, and networks—over the internet on an on-demand, pay-as-you-go basis. It gives the user the highest level of control over their operating systems and applications, while the cloud provider manages the physical hardware.