Final answer:
A hybrid cloud indeed combines a public cloud with on-premise infrastructure, offering a blend of scalability and security by using resources from both environments to handle routine and fluctuating workloads.
Step-by-step explanation:
The assertion that a hybrid cloud combines a public cloud with on-premise infrastructure is true. A hybrid cloud model enables organizations to leverage the scalability and cost-efficiency of the public cloud while also maintaining critical applications and sensitive data on private, on-premise infrastructure. One common use case for a hybrid cloud strategy is to handle fluctuating workloads; routine processing can occur in-house, while bursts in demand can be handled by the public cloud resources, which can dynamically allocate additional computing resources to accommodate the increased load.