更多"[单选题]Cloud computing is a phrase us"的相关试题:
[单选题]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 infrastructure layer is built with virtualized compute,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( )for building the platform layer of the cloud. In turn,the platform layer is a foundation for implementing the(请作答此空)layer for SaaS applications.
A.resoruce
B.service
C.application
D.software