[单选题]Computer ( ) focuses on protecting information, hardware, and software from unauthorized use and damage.
A.network
B.vims
C.security
D.architecture

[单选题]Computer ( ) focuses on protecting information, hardware, and software from unauthorized use and damage.
A.network
B.virus
C.security
D.architecture

[单选题]Computer ( ) focuses on protecting information, hardware, and software from unauthorized use and damage.
A.network
B.vims
C.security
D.architecture

[单选题]Computer ______ focuses on protecting information, hardware, and software from unauthorized use and damage.
A.network
B.virus
C.security
D.architecture]

[单选题]（　　）is the process of transforming information so it is unintelligible to anyone but the intended recipient.
A.Encryption
B.Decryption
C.Security
D.Protection

[单选题]（ ） is used to model aggregates of information and the relationships these aggregates have to other. A.Dat
A.flow diagram
B.Entity relationship diagram
C.Sequence diagram
D.Structure diagram

[单选题]Information（ ）means protecting information and information systems from unauthorized acces,use, disclosure, disruption, modification, or destruction.
A.integrity
B.availability
C.security
D.consistency

[单选题]Information（　　）means protecting information and information systems from unauthorized access,use,disclosure,disruption,modification,or destruction.
A.integrity
B.availability
C.security
D.consistency

[单选题] 广泛使用的电子邮件地址的格式是mailbox@computer.edu。其中computer.edu是______。
A. 邮箱所在的计算机的字符串,即域名
B. 用户邮箱的字符串
C. 标示用户的邮箱
D. 以上都不对

[单选题] 当在搜索引擎中输入"computer book"(用引号括起来的computer book),检索的结果最可能是________。
A. 结果满足computer和book其中的一个条件。
B. 结果中满足computer和book两个条件。
C. 结果中满足computer book 这个条件,而不是满足computer或book任何一个条件。
D. 结果中包含computer或book。

[单选题]Many computer languages provide a mechanism to call ( ) provided by libraries such as in .dlls.
A.instructions
B.functions
C.subprograms
D.subroutines

[单选题]The term computer describes a device made up of a combination of electronic components．By itself, a computer has no ( ) and is referred to as hardware, which means simply the physical equipment． The hardware can't be used until it is connected to other elements, all of which constitute the six parts of a computer-based information system,hardware,software,data/information, people, procedures and communications． A system is defined as a collection of related components that ( ) to perform a task in order to accomplish a goal． Any organization that uses information technology will have a computer-based information system to provide managers (and various categories of employees with the appropriate kind of information to help them make decisions． Systems analysis and design is to ascertain how a system works and then take steps to make it (3 ) Often, a system approach is used to define, describe, and solve a problem or to meet a(an)（ ） From time to time, organizations need to ( ) their information systems, in, response to new marketing' opportunities, modified government regulations, the introduction ．of new technology, merger with another company, or other developments． When change is needed, the time is ripe for applying the principles of systems analysis and design． （ ）应选（ ）。
A.improved
B.better
C.good
D.best