CSEIT206253 | Accepted : 01 April 2020 | Published : 07 April 2020 | March-April-2020 [ 6 (2) : 265-270 ] International Journal of Scientific Research in Computer Science, Engineering and Information Technology © 2020 IJSRCSEIT | Volume 6 | Issue 2 | ISSN : 2456-3307 DOI : https://doi.org/10.32628/CSEIT206253 265 Cloud Computing Security Issues and Challenges Arwinder Kaur 1 , Gurpreet Singh 2 1 CGC-CCT, Landran, Ajitgarh, Punjab, India 2 SSIET, Derabassi, Punjab, India ABSTRACT Cloud computing is a technology which works on plethora of computation such as sharing, managing, configuring, storing, and processing with the use of virtualized dynamic resources pooling on demand self-services with high availability on round clock as pay as you go with measured services. It is the most tempting technology in today’s paradigms due to its positives like scalability, flexibility, cost efficiency and recovery. In this paper, we will study significance of cloud computing and its services worldwide in almost every field. Also, survey open confronts allied to cloud. This paper is a review particularly on diverse concerns and challenges that occur recurrently while using cloud computing tools. Keywords : Cloud Computing, Deployment Model, Network, Database, Virtualization, Resource Scheduling, Transaction Management, Load Balancing. I. INTRODUCTION Cloud computing refers many computing like Grid and Cluster to understand the concept of this new technology that developed from many previous tools. Cloud computing is IT centric approach which offers managed self-service, platform and infrastructure with the aid of virtualization technology. Cloud computing is performed in two phase as front end and back end. The front end is a client who gets served by those services which are provided by the back end which is the cloud system that is remote server. Fig 1.1 The Figure 1.1 represents cloud computing model using different technologies