Which term refers to an infrastructure operated by a single organization?

The term that refers to an infrastructure operated by a single organization is "Private Cloud." A private cloud is specifically designed for one organization, which means the resources are dedicated solely to that organization’s use. This allows for greater control over data, security, and compliance, as the organization can tailor the infrastructure to meet its specific needs and policies.

In contrast, a public cloud is shared among multiple organizations, which can lead to concerns regarding data privacy and security. A hybrid cloud combines both private and public clouds, providing a flexible solution but still indicates shared usage. Multi-tenant cloud environments also involve multiple organizations sharing the same infrastructure, highlighting the distinction in operational ownership and resource allocation when it comes to private cloud setups.

Thus, the private cloud model stands out as the one that caters exclusively to a single entity, ensuring dedicated resources and enhanced privacy measures.