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試卷名稱 2014年上半年數(shù)據(jù)庫系統(tǒng)工程師考試上午真題試題(綜合知識)
考試中心《2014年上半年數(shù)據(jù)庫系統(tǒng)工程師考試上午真題試題(綜合知識)》在線考試
試卷年份2014年上半年
試題題型【單選題】
試題內(nèi)容

Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers(1)through a real-time communication network such as the Internet. In science, cloud computing is a(2)for distributed computing over a network, and means the(3)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 computer, 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(4)for building the platform layer of the cloud. In turn, the platform layer is a foundation for implementing the(5)layer for SaaS applications.
(1)
A.connected
B.imlemented
C.optimized
D.Virtualized
(2)
A.replacement
B.switch
C.substitute
D.synonym(同義詞)
(3)
A.ability
B.applroach
C.function
D.method
(4)
A.network
B.foundation
C.software
D.hardware
(5)
A.resoruce
B.service
C.application
D.software


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