Which of the following is a cloud computing deployment model that shares infrastructure with multiple organizations that have common needs?

A. private

B. community

C. hybrid

D. public

Explanation:
Community is a cloud computing deployment model that shares infrastructure with multiple organizations that have common needs. Hybrid can use a mixture of public and private infrastructure resources. However, community clouds share the public infrastructure resources between multiple organizations. Typically, the organizations involved in community cloud computing have common needs that the community cloud can provide.

There are four different cloud computing deployment models: private cloud, public cloud, hybrid cloud, and community cloud. Cloud computing is a term used to describe computing services that are offered for consumption in a way that demands fewer infrastructure expenses from the organization. Cloud computing deployment models describe how the cloud services are delivered to the customer. Cloud computing service models, on the other hand, describe the cloud services that the customer has purchased, such as infrastructure, platforms, or software.

Hybrid is a cloud computing deployment model that uses a mixture of private and public infrastructure resources to form a single organization’s cloud. Typically, the hybrid model relies on its private cloud component for some workload but uses the public cloud component to extend the private cloud services on demand.

Private is a cloud computing deployment model that is constructed for only the organization that uses its services. Private cloud computing is typically established by using either a third-party service or internal servers, not both. The use of a private cloud enables an administrator to ensure that the cloud’s resources are available only to an authorized few users. Therefore, private cloud computing is typically considered the lowest risk to security when a customer is adopting a cloud solution.

Public is a cloud computing deployment model that is owned and operated by a service provider. Public cloud computing does not use a mixture of private and public infrastructure resources. Public clouds typically allow the general public to access storage and applications served from the cloud. For example, a Gmail account is a service that is provided from a public cloud. Other public cloud computing providers include Amazon and Rackspace.