試題1

如下圖所示，模塊A和模塊B都訪問相同的全局變量和數(shù)據(jù)結構，則這兩個模塊之間的耦合類型為（ ）耦合。



A. 公共
B．控制
C．標記
D．數(shù)據(jù)

查看答案

試題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 (虛擬現(xiàn)實), the technology of （1）witha computer using all of the human senses, will also contribute to better humanand computer （2）. Other, exotic (奇異的) 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 (遺傳), 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

查看答案

試題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（授權）．
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（驗證）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

查看答案

試題4

查看答案

試題5

查看答案

試題6

程序設計語言引入“類”的概念是為了解決數(shù)據(jù)保護問題。C++語言將類的成員封裝在類體之中，使之具有一定的存取規(guī)則，這些規(guī)則規(guī)定了存取類的成員的權利，其中，對于用private說明的成員，它（ ）。
A、既能被該類的成員函數(shù)訪問，又能被外界直接訪問 
B、只能被該類的成員函數(shù)訪問，外界不能直接訪問 
C、不能被該類的成員函數(shù)訪問，只能被外界直接訪問
D、既不能被該類的成員函數(shù)訪問，也不能被外界直接訪問 

查看答案

試題7

以下媒體中（1）是表示媒體，（2）是表現(xiàn)媒體。
（1）A．聲音
B．聲音編碼
C．超聲波
D．喇叭
（2）A．聲音
B．聲音編碼
C．超聲波
D．喇叭

查看答案

試題8

DMA工作方式下，在（）之間建立了直接的數(shù)據(jù)通路。
A．CPU與外設
B．CPU與主存
C．主存與外沒
D．外設與外設

查看答案

試題9

查看答案

試題10

查看答案