Which of the following describes a hybrid cloud?

A hybrid cloud is best defined as a combination of public and private cloud infrastructures. This setup allows organizations to take advantage of both environments, leveraging the scalability and flexibility of public clouds while maintaining control and security through private clouds for sensitive data or critical applications.

In a hybrid cloud strategy, businesses can seamlessly integrate and manage workloads across both public and private clouds, enabling them to optimize resources, enhance performance, and accommodate varying demand levels. This approach provides a versatile framework that can adapt to changing business needs, facilitating both rapid deployment and secure operations.

The other choices describe different models: on-premises and private cloud resources indicate a more isolated setup without the public cloud component, while a closed cloud setup refers to restricted access, thereby contradicting hybrid cloud principles. A community cloud represents a shared setup among specific organizations, which is not the same as a hybrid model that blends private and public resources.