试题1

任何一个基于“比较”的内部排序的算法，若对6今元素进行排序，则在最坏情况下所需的比较次数至少为（ ）。
A、10 
B、1l 
C、21 
D、36 

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试题2

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试题3

将数组{1，1，2，4，7，5}从小到大排序，若采用（1）排序算法，则元素之间需要进行的比较次数最少，共需要进行（2）次元素之间的比较。
（1） A．直接插入
B．归并
C．堆
D．快速
（2） A．5
B．6
C．7
D．8

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试题4

在CPU与主存之间设置高速缓冲存储器（Cache），其目的是为了 （ ） 。
A、扩大主存的存储容量
B、提高CPU对主存的访问效率
C、既扩大主存容量又提高存取速度
D、提高外存储器的速度

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试题5

For nearly  ten years,  the Unified Modeling Language  (UML) has been  the  industrystandard  for  visualizing,  specifying,  constructing,  and documenting  the（1） of  a software-intensive system. As the （2）standard modeling language, the UML facilitates communication and reduces confusion among project  （3） The recent standardization of UML 2.0 has  further extended  the  language's scope and viability.  Its  inherent expressiveness allows  users  to （4） everything  from  enterprise  information  systems  and  distributed Web-based applications to real-time embedded systems. The UML  is not  limited  to modeling software. In fact,  it  is expressive enough  to model （5） systems, such as workflow in the legal system, the structure and behavior of a patien healthcare system, software engineering in aircraft combat systems, and the design  of hardware. To understand the UML, you need to form a conceptual model of the language, and this requires learning three major elements: the UML's basic building blocks, the rules that dictate how  those  building  blocks may  be  put  together,  and  some  common mechanisms  that  apply throughout the UML.
（1）A、classes
B、components
C、sequences
D、artifacts
（2）A、real
B、legal
C、de facto
D、illegal
（3）A、investors
B、developers
C、designers
D、stakeholders
（4）A、model
B、code
C、test
D、modify
（5）A、non-hardware
B、non-software
C、hardware
D、software

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试题6

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试题7

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试题8

以下关于VLAN的叙述中，属于其优点的是( )
A.允许逻辑地划分网段
B.减少了冲突域的数量
C.增加了冲突域的大小
D.减少了广播域的数量

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试题9

Cloud computing is a phrase used to describe avariety of computing concepts that involve a large number of computers (71) through a real-time communication network such as the Internet. Inscience,cloud computing is a (72) for distributed computing over a network, and means the (73) 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, andnetworkresources.Theplatformlayerisforgeneral-purposeandrepeatedusageofthecollectionofsoftwareresources.TheapplicationlayerisformedwithacollectionofallneededsoftwaremodulesforSaaSapplications.Theinfrastucturelayerservesasthe(74)forbuildingtheplatformlayerofthecloud.Inturn,theplatformlayerisfoundationforimplementingthe(75)layerforSaaS applications.

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试题10

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