A retailer hosts applications in Azure but keeps its ERP system on-premises. Which deployment model is this?

This scenario describes a hybrid cloud model because it combines on-premises infrastructure (the ERP system) with public cloud services (applications hosted in Azure). Hybrid cloud allows organizations to integrate their existing on-premises data centers with cloud resources, offering flexibility and control over where workloads are deployed. Public cloud refers to services offered by third-party providers over the internet, without any on-premises component. Multi-cloud involves using services from multiple public cloud providers, not a mix of on-premises and cloud. Private cloud refers to cloud infrastructure dedicated to a single organization, which can be on-premises or hosted by a third party, but doesn't inherently include integration with a public cloud.