What combines resources from two different public cloud vendors?

The concept of combining resources from two different public cloud vendors is referred to as multi-cloud. This approach involves using services from multiple cloud providers instead of relying on a single vendor. Organizations may choose a multi-cloud strategy to avoid vendor lock-in, optimize their cloud expenditures, or leverage the distinct advantages that different cloud services offer. For instance, one cloud provider might excel in data storage while another might provide superior computational services.

In contrast, while a hybrid cloud combines on-premises infrastructure with public or private cloud resources, it does not specifically require two different public cloud vendors. Community cloud typically refers to a shared infrastructure between several organizations with common concerns (like security, compliance, etc.) but does not focus on using multiple public clouds. Therefore, the multi-cloud model distinctly emphasizes the use of multiple public cloud services, making it the correct choice.