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 compute storage and 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 founda-tion for implementing the （）layer for SaaS application.

单选题

Cloud computing is a type of Internet-based computing that provides shared computer processingresources and data to computers and other devices on demand. Advocates claimthat cloud computing allows companies to avoid up-front infrastructure costs.Cloud computing now has few service form, but it is not including （）.

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单选题

Cloud computing is a style of computing in which dynamically scalabled often ( ) resources are provided as a service over the internet

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多选题

第一次正式提出云计算(Cloud Computing)概念的是()

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单选题

Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers （ 请作答此空）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 wit

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单选题

Cloud computing provides on-demand service to users by using distributed computing and（ ）resource management.A.network

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