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计算机
Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers _______th
Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers _______th
admin
2015-12-01
40
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 _______ 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 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 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.
(75)
选项
A、resource
B、service
C、application
D、software
答案
C
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,连接在一起。在科学研究中,云计算是分布式网络计算的同义词,意味着有能力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硬件基础;相应地,平台层是执行应用层SaaS应用的基础。
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