试题1

如下图所示，模块A和模块B都访问相同的全局变量和数据结构，则这两个模块之间的耦合类型为（ ）耦合。



A. 公共
B．控制
C．标记
D．数据

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试题2

Computers will become more advanced and they willalso become easier to use. Improved speed recognition will make the operationof a computer easier. Virtual reality (虚拟现实), the technology of （1）witha computer using all of the human senses, will also contribute to better humanand computer （2）. Other, exotic (奇异的) models of computation arebeing developed, including biological computing that uses living organisms,molecular computing that uses molecules with particular （3）, and computingthat uses DNA, the basic unit of heredity (遗传), to store data and carry outoperations. These are examples of possible future computational platforms that,so far, are limited in abilities or are strictly （4）. Scientists investigatethem because of the physical limitations of miniaturizing circuits embedded insilicon. There are also （5）related to heat generated by even the tiniest oftransistors.

（1）A. interact

B. interacting  

C. communicate

D. using

（2）A. interfaces  

B. behavior

C. similarities  

D. comparison

（3）A. software   

B. properties   

C. programs   

D. hardware

（4）A. empirical  

B. real

C. practical

D. theoretical

（5）A. developments  

B. advantages  

C.  limitations  

D.improvements

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试题3

In the fields of physical security and information security, access contro lis the selective restriction of access to a place orothe rresource. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization（授权）．
An access control mechanism(1) between a user (or a process executing on behalf of a user) and system resources, such as applications,operating systems,firewalls,routers,files,and databases.The system must first a uthenticate（验证）a user seeking access.Typically the authentication function determines whether the user is（2 ）to access the system at all. Then the access control function determines if the specific requested access by this user is permitteD. A security administrator maintains an authorization database that specifies what type of access to which resources is allowed for this user. The access control function consults this database to determine whether to（3 ）access. An auditing function monitors and keeps a record of user accesses to system resources.
In practice,a number of（4 ）may cooperatively share the access control function. All operating systems have at least arudimentary（基本的）,and in many cases aquite robust,access control component.Add-on security packages can add to the（5 ）access control capabilities of the OS. Particular applications orutilities, such as a database management system, also incorporate access control functions. External devices,such as firewalls, can also provide access control services.
（1）A．cooperates
B．coordinates
C．connects
D．mediates
（2）A．denied
B．permitted
C．prohibited
D．rejected
（3）A．open
B．monitor
C．grant
D．seek
（4）A．components
B．users
C．mechanisms
D．algorithms
（5）A．remote
B．native
C．controlled
D．Automated

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试题4

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试题5

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试题6

程序设计语言引入“类”的概念是为了解决数据保护问题。C++语言将类的成员封装在类体之中，使之具有一定的存取规则，这些规则规定了存取类的成员的权利，其中，对于用private说明的成员，它（ ）。
A、既能被该类的成员函数访问，又能被外界直接访问 
B、只能被该类的成员函数访问，外界不能直接访问 
C、不能被该类的成员函数访问，只能被外界直接访问
D、既不能被该类的成员函数访问，也不能被外界直接访问 

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试题7

以下媒体中（1）是表示媒体，（2）是表现媒体。
（1）A．声音
B．声音编码
C．超声波
D．喇叭
（2）A．声音
B．声音编码
C．超声波
D．喇叭

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试题8

DMA工作方式下，在（）之间建立了直接的数据通路。
A．CPU与外设
B．CPU与主存
C．主存与外没
D．外设与外设

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试题9

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试题10

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