Which of the following cloud deployment models allows a company to have full control over its IT infrastructure?

In a private cloud model, all infrastructure - servers, storage, networking, and hypervisors - is owned and operated exclusively by the organization, either on-premises or in a dedicated colocation facility. This means the company retains full control over hardware configuration, security policy, compliance posture, and data governance without depending on any third-party provider.

A cloud within a cloud (virtual private cloud) is a logically isolated tenant partition inside a third-party provider's infrastructure, so the underlying physical hardware remains under the provider's control.

A hybrid cloud combines private and public resources, meaning the company relinquishes control over the public cloud portion of its infrastructure to an external provider.

A public cloud is fully owned and managed by a third-party provider, leaving the customer with no control over the underlying physical hardware or data center operations.