https://amazonaws-china.com/cn/certification/certification-prep/
Amazon Elastic Compute Cloud (Amazon EC2) 是一种 Web 服务，可以在云中提供安全并且可调整大小的计算容量。该服务旨在让开发人员能够更轻松地进行 Web 规模的云计算 弹性计算
设计原则
Design Principles The AWS Cloud includes many design patterns and architectural options that you can apply to a wide variety of use cases. Some key design principles of the AWS Cloud include scalability, disposable resources, automation, loose coupling managed services instead of servers, and flexible data storage options