Which cloud model is described as sharing resources and costs among multiple organizations that have a common service need?

The community cloud model is designed specifically to facilitate resource sharing among multiple organizations that have similar requirements or needs. In a community cloud, the infrastructure is shared by several organizations with common interests or goals, such as regulatory compliance, security requirements, or the need for specific services. This model allows these organizations to pool resources, reducing individual costs while maintaining a level of control and privacy that may not be possible in a public cloud.

By aggregating resources, organizations can benefit from economies of scale, which can lead to lower operational costs and shared management responsibilities. This is especially advantageous for organizations within the same industry or sector, as they are often subject to similar regulations and service requirements.

In contrast, other cloud models operate under different principles. For example, the public cloud model is open to the general public and is operated over the Internet, providing no specific resource targeting for a single organization. The private cloud is dedicated to a single organization, offering more control and customization but at potentially higher costs. The hybrid cloud combines features of both private and public clouds, allowing for flexibility but does not specifically focus on resource sharing among multiple organizations with a common service need like the community cloud does.