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 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.

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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