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CHALLENGES IN FEDERATED CLOUD
Dr. C.S. Rajarajeswari

Published in: International Journal of Current Engineering And Scientific Research ( IJCESR)
Volume- 4, Issue-10, pp.55-59, Oct 2017
DPI :-> 16.10046.IJCESR.2017.V4I10.5559.2053



Abstract
Cloud computing refers to the use of resources residing on a remote machine, delivered to end user as a service on demand over Internet and pay per use. There are three models capable of delivering services namely Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS). IaaS is the basic cloud service model which provides virtual infrastructure such as servers, data storage space etc. PaaS delivers user development environment services, whereby a user can develop and execute inhouse built applications. The service includes Operating System (OS), programming language execution environment, databases and web servers. SaaS refers to the access of applications reside ng in the cloud. Cloud computing can be deployed as a public, private, community and hybrid cloud. Public clouds are available to all users in a pay-asyou-go manner. Private cloud refers to internal datacenters of an organization that are not available to the public. Community clouds are shared by several organizations and are usually built for specific requirements. Hybrid clouds are the mixture of the above three deployment models. In hybrid cloud, applications and data can be independently managed and allowed to move across the environment.

Key-Words / Index Term
Cloud. Federated cloud, Resource provisioning, Service Level Agreement.

How to cite this article
Dr. C.S. Rajarajeswari , “CHALLENGES IN FEDERATED CLOUD”, International Journal of Current Engineering And Scientific Research ( IJCESR), 4, Issue-10, pp.55-59, Oct 2017. DPI:16.10046.IJCESR.V4.I10.2053