Cloud Computing is considered one of the
emerging arenas of computer science in recent times. It
is providing excellent facilities to business entrepreneurs
through flexible infrastructure. There are lots of
advantages the cloud computing technology like
efficiency, reliability, flexibility, and security. This
technology is growing day by day in Government,
business as well as in education sectors. Though using
Cloud Computing we have lots of opportunities in the IT
industries and IT professionals are utilizing Cloud
Computing in business models or other ways. We may
not say that using cloud computing. Although cloud
computing is facilitating the Information Technology
industry, the research and development in this arena are
yet to be satisfactory. Our contribution to this paper is
an advanced survey focusing on the cloud computing
concept and the most advanced research issues. This
paper provides a better understanding of cloud
computing and identifies important research issues in
this burgeoning area of computer science.
Keywords : Cloud Computing; Virtualization; Data Centre; Server Consolidation