Cloud computing is a phrase used to desc

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问题 Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers（1）through a real-time communication network such as the Internet.In science,cloud computing is a（2）for distributed computing over a network,and means the（3）to run a program or application on many connected computers at the same time.The architecture of a cloud is developed at three layers:infrastructure,platform,and application,The infrastructure layer is built with virtualized computer,storage,and network resources.The platform layer is for general-purpose and repeated usage of the collection of software resources.The application layer is formed with a collection of all needed software modules for SaaS applications.The infrastructure layer serves as the（4）for building the platform layer of the cloud.In turn,the platform layer is a foundation for implementing the（5）layer for SaaS applications.问题1选项A.connectedB.imlementedC.optimizedD.Virtualized问题2选项A.replacementB.switchC.substituteD.synonym(同义词)问题3选项A.abilityB.applroachC.functionD.method问题4选项A.networkB.foundationC.softwareD.hardware问题5选项A.resoruceB.serviceC.applicationD.software

选项

答案 ADABC

解析云计算是用来描述各种计算概念的短语，包括大量计算机通过网络相互连接以实现分布计算，意思是同时在很多互联的计算机上运行程序或应用的能力。云的架构分为基础设施层、平台层和应用层三层。基础设施层由虚拟计算、存储和网络资源构成。平台层用于一组软件资源重复使用的通用目的。应用层由一组所需的软件模块构成即软件即服务（SaaS）。基础设施层作为构建平台层的基础。相反，平台层是应用层的基础，为SaaS应用实现应用层。

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Cloud computing is a phrase used to desc

中级软件设计师

软件水平考试初中高级