Cloud architecture refers to the design and structure of systems that operate in the cloud computing environment. It includes various components such as servers, storage, databases, and networking, all working together to deliver services over the internet. This architecture allows users to access resources on-demand, providing flexibility and scalability. Key elements of cloud architecture include front-end and back-end systems. The front-end consists of the user interface and applications that users interact with, while the back-end includes the servers and databases that store and process data. Together, they enable efficient data management and application deployment in the cloud.