Cloud computing as a style of computing in which scalable and flexible IT-enabled capabilities are provided as a service using Internet technologies.
Cloud is usually a virtual server or a combination of virtual servers available on the Internet where information is centralized and information accessibility is globalized, on-demand.
Basically, the fluffy white stuff i.e. cloud it is nothing but a cluster of dedicated servers connected together in a single network. The virtual edition of servers gives cloud its unique attribute and ability to centralize the data and reduce the complexity of data management- A good reason for the HYPE.
For all industrial applications based on Cloud environment its very beneficial to implement the concept of Cloud scalability. For effective functioning, cloud needs to be designed with the provision of everlasting abstract scalability which can be controlled by service, if included in an architecture of cloud-based application.