Which of the following is a common cloud service model?

Infrastructure as a Service (IaaS) represents a fundamental cloud service model that provides virtualized computing resources over the internet. In this model, cloud service providers offer physical or virtual machines, storage, and networks as scalable resources that businesses can utilize without the need for on-premises infrastructure. This allows organizations to rent resources as needed, thus enabling flexibility, scalability, and cost-effectiveness.

IaaS serves as the backbone for other cloud service models, such as Platform as a Service (PaaS) and Software as a Service (SaaS). By managing the underlying hardware and virtualization, IaaS allows users to focus on deploying and managing applications without worrying about the physical machines.

While Network as a Service (NaaS), Data as a Service (DaaS), and Storage as a Service (StaaS) are also valid cloud service models, they fall under more specific categories within the broader IaaS framework. IaaS is generally recognized as a primary service model that provides essential infrastructure capabilities for various applications and services.