A Survey on Various Challenges and Security Issues in Cloud Computing

Abstract

Cloud computing is a type of computing that is based on the internet. It provides various hosting and
delivering services over the Internet. It provides the computational resources (Server, Storage, OS and Network) to user
as service, based on the demand of user. Cloud computing has gained its popularity by providing cheap and easy access
to IT (Information Technology). However, despite the fact that demand for cloud based resources is increasing day by
day but on the other side security is regarded as a serious issue on which work has to be done. We also address the
characteristics and applications of several popular cloud computing platforms. this paper, we described Cloud
Computing, Architecture of Cloud Computing, Characteristics of Cloud Computing, and different Services and
Deployment model of Cloud Computing. And we focus on the discussion of Ant Colony Optimization technique used by
different authors.