What concept allows customers to share computing resources in a public or private cloud?

• A. Private Cloud
• B. Multitenancy
• C. IaaS
• D. Public Cloud

Answer: (B)

Multitenancy is the ability for a single instance of software and its underlying infrastructure to serve multiple customers, or tenants, at once. In cloud environments, this means many users share the same physical resources—CPU, memory, storage, and networking—while their data and operations remain isolated from each other. This shared, multi-tenant architecture is what enables a public cloud to scale cost-effectively and a private cloud to support multiple internal units or departments securely. The other terms describe where resources live (public vs private) or what is provided as a service (IaaS), but they don’t define the architectural approach that allows many customers to share the same resources.