251-300 Cloud Computing and IT Concepts

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Cloud Service Providers (CSPs)

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Organization providing infrastructure, application, and/or storage services via an 'as a service' subscription-based, cloud-centric offering.

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Multi-cloud

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A cloud deployment model where the cloud consumer uses multiple public cloud services.

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Private Cloud

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A cloud that is deployed for use by a single entity.

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Cloud Computing

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Computing architecture where on-demand resources provisioned with high availability, scalability, and elasticity are billed to customers based on metered utilization.

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Community Cloud

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A cloud that is deployed for shared use by cooperating tenants.

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Hybrid Cloud

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A cloud deployment that uses both private and public elements.

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Cloud Service Models

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Classifying the provision of cloud services and the limit of the cloud service provider's responsibility as software, platform, infrastructure, etc.

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Anything as a Service (XaaS)

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The concept that most types of IT requirements can be deployed as a cloud service model.

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Software as a Service (SaaS)

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A cloud service model that provisions fully developed application services to users.

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Platform as a Service (PaaS)

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A cloud service model that provisions application and database services as a platform for app development.