Cloud computing is a phrase used to desc

题库2022-08-02  48

问题 Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers ( )through a real-time communication network such as the Internet. In science, cloud computing is a ( 请作答此空)for distributed computing over a network, and means the ( )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 infrastucture layer is built with virtualized computestorageand network resources. The platform lay-er 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 infrastucture layer serves as the ( )for building the platform layer of the cloud. In turn, the platform layer is foundation for implementing the ( )layer for SaaS application.A.replacementB.switchC.substituteD.synonym(同义词)

选项 A.replacement
B.switch
C.substitute
D.synonym(同义词)

答案 D

解析 云计算是一个用来描述各种计算概念的一个短语,计算概念涉及大量计算机通过实时通信的网络,如Internet,(11)在一起。在科学研究中,云计算是分布式网络计算的(12),意味着有(13)同时在多台互连的计算机上运行一个程序或应用。云的结构分为3层:基础设施、平台和应用。基础实施层由虚拟计算机存储和网络资源构成;平台层是具有通用性和复用性的软件资源的集合;应用层是云上针对SaaS应用的所有应用软件的集合。基础设施层时建立平台层的(14)基础;相应地,平台层是执行应用层SaaS(15)的基础。A. 替代品     B. 转换  C. 代替     D.同义词
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