Cloud computing supports following deploymentmodels:
I. Private Cloud: Somecompanies build their privatecloud. Aprivatecloud isafully functional platformthat is owned, operated
and used by only one organization.
Primary reason for privatecloud is security. Many companies feelsecurein privatecloud. The other reasons for building
privatecloud arestrategic decisions orcontrol of operations.
Thereisalso aconcept ofVirtualPrivate Cloud (VPC). InVPC, privatecloud is builtand operated by a hosting company.
But it isexclusively used by one organization.
II. Public Cloud: Therearecloud platforms by somecompanies thatare open for general publicas wellas big companies for useand
deployment. E.g. Google Apps, AmazonWeb Servicesetc.
The publiccloud providers focus on layersand application like- cloud application, infrastructure managementetc. In this model
resourcesareshared among different organizations.
III. HybridCloud: Thecombination of publicand privatecloud is known as Hybrid cloud. Thisapproach provides benefits of both
theapproaches- privateand publiccloud. So it is very robust platform.
Aclient gets functionalitiesand features of both thecloud platforms. By usingHybrid cloud an organization can createits own
cloud as wellas they can pass thecontrol oftheircloud to another third party.
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