An architecture where multiple customers (tenants) share the same physical infrastructure with logical isolation between their data and configurations. The foundation of the public cloud model.
Appears in AZ-900 and CLF-C02 as a foundational concept of public cloud. The provider uses virtualization to isolate customers. Question: what guarantees isolation in multitenancy? Answer: virtualization and the provider's access controls.
Multitenancy is a concept that can show up on the exam. Check the full guide to see it in context.