单项选择题
A.EBSConfigServiceB.AMIConfigServiceC.Ec2ConfigServiceD.Ec2-AMIConfigService
A.AWS Access Control Service (ACS)B.AWS Identity Manager (AIM)C.AWS Identity and Access Management (IAM)
A.设计图形用户交互界面B.管理用户标识和授权C.保存网页内容D.协调分布式、容错的同步、异步任务