<b>Understanding the Determinants of Security and Privacy in Cloud Computing Architecture</b> Cloud computing is an emerging model of business computing. Cloud computing is a service, which offers customers to work over the internet. It simply states that cloud computing means storing and accessing the data and programs over the internet rather than the computer’s hard disk. The data can be anything such as music, files, images, documents, and many more. The user can access the data from anywhere just with the help of an internet connection. To access cloud computing, the user should register and provide with ID and password for security reasons. The speed of transfer depends on various factors such as internet speed, the capacity of the server, and many more. In this paper, we explore the understanding the determinates of security and privacy in cloud computing, Cloud Computing architecture and We also address the characteristics and applications of several popular cloud computing platforms. We identified several challenges from the cloud computing adoption perspective and we also highlighted the cloud interoperability issue that deserves substantial further research and development. However, security and privacy issues present a strong barrier for users to adapt to cloud computing systems. Cloud computing, architecture, challenges, cloud platforms 881-884 Issue-5 Volume-3 Yin Myo Kay Khine Thaw | Khin Myat Nwe Win