Combination of private and public clouds.

• A. Public Cloud
• B. Private Cloud
• C. Community Cloud
• D. Hybrid Cloud

Answer: (D)

Hybrid cloud refers to using both private cloud resources and public cloud services in a coordinated way. This lets an organization keep sensitive workloads and data in a private cloud for security and control, while taking advantage of the scalability and cost efficiency of a public cloud for less sensitive tasks or peak workloads. It also supports flexible use cases like disaster recovery and testing, since workloads can move between environments as needed. Public cloud alone serves many tenants and isn’t restricted to a single organization, private cloud is limited to a single organization, and community cloud is shared among a group with common concerns; combining private and public clouds gives the best of both worlds.