Which cloud deployment model uses shared infrastructure across multiple tenants and is widely described as multi-tenant?

Which cloud deployment model uses shared infrastructure across multiple tenants and is widely described as multi-tenant?

• A. Private cloud
• B. Hybrid cloud
• C. Public (or multi-tenant)
• D. Community cloud

Answer: (C)

The concept being tested is how a cloud deployment model handles resource sharing. In a public cloud, the infrastructure—servers, storage, and networking—is owned and operated by a cloud service provider and is shared across many different customers, or tenants. This sharing of the same physical resources, while maintaining logical separation through virtualization and access controls, is what people refer to when they say it’s multi-tenant. Because resources are pooled, providers can achieve economies of scale, offer broad service options, and usually charge based on usage. Think of it this way: I’m using a portion of a large, shared facility that hosts many customers. The provider guarantees isolation so my data and workloads stay separate from others, even though we’re all riding on the same underlying hardware. That’s the hallmark of the public cloud’s multi-tenant nature. The other models don’t fit this description as well. A private cloud is dedicated to a single organization, giving more control and isolation but without the wide sharing. A hybrid cloud combines on-premises infrastructure with public cloud resources, balancing several environments rather than sharing a single set of shared resources. A community cloud is shared among a specific group with common concerns, which is more limited in scope than the broad multi-tenant public cloud. So the model that uses shared infrastructure across many tenants and is widely described as multi-tenant is the public cloud.

The concept being tested is how a cloud deployment model handles resource sharing. In a public cloud, the infrastructure—servers, storage, and networking—is owned and operated by a cloud service provider and is shared across many different customers, or tenants. This sharing of the same physical resources, while maintaining logical separation through virtualization and access controls, is what people refer to when they say it’s multi-tenant. Because resources are pooled, providers can achieve economies of scale, offer broad service options, and usually charge based on usage.

Think of it this way: I’m using a portion of a large, shared facility that hosts many customers. The provider guarantees isolation so my data and workloads stay separate from others, even though we’re all riding on the same underlying hardware. That’s the hallmark of the public cloud’s multi-tenant nature.

The other models don’t fit this description as well. A private cloud is dedicated to a single organization, giving more control and isolation but without the wide sharing. A hybrid cloud combines on-premises infrastructure with public cloud resources, balancing several environments rather than sharing a single set of shared resources. A community cloud is shared among a specific group with common concerns, which is more limited in scope than the broad multi-tenant public cloud.

So the model that uses shared infrastructure across many tenants and is widely described as multi-tenant is the public cloud.