What type of cloud model retains full control over corporate data?

The correct choice, the private cloud, is designed specifically for a single organization, allowing that organization full control over its data and infrastructure. In a private cloud model, resources are dedicated exclusively to one organization, providing enhanced security and privacy because the physical servers and the underlying infrastructure are not shared with other entities. This level of isolation aids in meeting regulatory and compliance requirements often imposed by industries that handle sensitive information.

On the other hand, public clouds provide services over the internet to multiple customers, which means that data is stored on shared infrastructure, leading to less control over where and how data is managed. Hybrid clouds combine elements of both public and private clouds but still involve shared resources at some level, which may compromise full control over data. Community clouds share infrastructure among several organizations, also becoming susceptible to the risks associated with multi-tenant environments. Therefore, the private cloud remains the option that ensures complete control over corporate data management and security.