Which of the following can be considered a hybrid cloud?

A hybrid cloud is defined as an IT architecture that incorporates a combination of public and private cloud services, allowing data and applications to be shared between them. This setup offers greater flexibility, allowing organizations to take advantage of the scalability of public clouds while maintaining the security and control of private clouds for sensitive data.

By utilizing a hybrid cloud model, businesses can optimize their resources and manage workloads more effectively. For example, less sensitive operations can be performed on the public cloud, which can scale out rapidly and at a lower cost, while critical applications and sensitive information can remain secure in a private cloud environment.

The other choices represent different cloud models that do not accommodate the dual nature of hybrid clouds. A single public cloud solely relies on a third-party provider, while a backup solution is merely a function or service and does not define a cloud infrastructure. A dedicated cloud for a single user falls under isolated services rather than a hybrid approach, emphasizing exclusivity instead of combining multiple cloud types.