A Cloud deployment model represents a specific type of Cloud environment, primarily distinguished by ownership, size, and access.
The following sections describe the four common Cloud deployment models:
- Public Cloud
- Community Cloud
- Private Cloud
- Hybrid Cloud
A public Cloud is a publicly accessible Cloud environment owned by a third-party Cloud provider. The IT resources on public Clouds are usually provisioned using the previously described Cloud delivery models and are generally offered to Cloud consumers at a cost or are commercialized using other avenues (such as advertisements).
The Cloud provider is responsible for the creation and ongoing maintenance of the public Cloud and its IT resources. Many of the scenarios and architectures explored in upcoming chapters involve public Clouds and the relationship between the providers and consumers of IT resources using public Clouds.