Final answer:
The private cloud model provides complete control over security.
Step-by-step explanation:
The cloud model that provides complete control over security is the private cloud. In a private cloud, the infrastructure and services are dedicated to a single organization, allowing them to have full control over security measures and protocols. This can be beneficial for organizations that handle sensitive data and need a higher level of security.
For example, a financial institution might use a private cloud to store customer financial information. By having complete control over security, they can implement strict access controls, encryption, and other measures to protect sensitive data.