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The generic model for an enterprise cloud has to be "hybrid" with the special cases of purely private or public clouds as subsets of the generic hybrid cloud deployment model. In a hybrid cloud deployment, at least two or more distinct cloud infrastructures are inter-connected together.
[ Petar suggests that we delete the following figure and I agree]
Cloud deployments can be created using a variety of technologies open-source (e.g., OpenStack, Kubernetes) and commercial technologies (e.g., VMware). A multi-cloud deployment can consist of the use of more than one technology.
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