● ___(58)___操作一般不会感染计算机病毒。
(58)A. 打开电子邮件的附件 B. 从网站下载软件
C. 通过软盘传送计算机上的文件 D. 启动磁盘整理工具
● CPU中,保存当前正在执行的指令的寄存器是___(59)___。表征指令执行结果的寄存器是___(60)___。
(59)A. 程序计数器 B. 标志寄存器(PSW) C. 堆栈指示器 D. 指令寄存器
(60)A. 程序计数器 B. 标志寄存器(PSW) C. 堆栈指示器 D. 指令寄存器
● 1000BaseLX使用的传输介质是___(61)___。
(61)A.UTP B.STP C.同轴电缆 D.光纤
● 在星型局域网结构中,连接文件服务器与工作站的设备是___(62)___。
(62)A.网卡 B.集线器 C.收发器 D.网关
● 浏览器与WWW服务器之间传输信息时使用的协议是___(63)___。
(63)A.HTTP B.HTML C.FTP D.SNMP
● MAC地址通常固化在计算机的___(64)___上。
(64)A.内存 B.网卡 C.硬盘 D.高速缓冲区
● 在局域网模型中,数据链路层分为___(65)___。
(65)A.逻辑链路控制子层和网络子层
B.逻辑链路控制子层和媒体访问控制子层
C.网络接口访问控制子层和媒体访问控制子层
D.逻辑链路控制子层网络接口访问控制子层
● A ___(66)___ computer is a personal computer whose hardware is capable of using any or all of the following media in a program: audio, text, graphics, video and animation.
(66)A.database B.multimedia C.network D.mainframes
● The___(67)___ controls the cursor or pointer on the screen and allows the user to access commands by pointing and clicking.
(67)A.graphics B.printer C.program D.mouse
● A ___(68)___ copies a photograph, drawing or page of text into the computer.
(68)A.scanner B.printer C.display D.keyboard
● ___(69)___ is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC.
(69)A.Interface B.Operating system C.Internet D.Application software
● ___(70)___ is not a linear structure
(70)A.Graph B.Queue C.Stack D.1-dimension array
● ___(71)___ is the sending and receiving of the message by computer. It is a fast, low-cost way of communicating worldwide.
(71)A.LAN B.Post office C.E-Mail D.Interface
● The___(72)___ is a collection of computers connected together by phone lines that allows for the global sharing information.
(72)A.interface B.Internet C.LAN D.WWW
● ___(73)___ are web sites that search the web for occurrences of a specified word or phrase.
(73)A.Search engines B.WWW C.Internet D.Java
● Files can be lost or destroyed accidentally. Keep ___(74)___ copies of all data on removable storage media.
(74)A.backup B.back C.black D.backdown
● In ___(75)___ programming, the user determines the sequence of instructions to be executed, not programmer.
(75)A.top-down B.structure C.data-driven D.event-driven
责任编辑:小草