● A （71） is used to communicate with another computer over telephone lines.（71）A．keyboardB．modemC．mouseD．printer

题目

● A （71） is used to communicate with another computer over telephone lines.

（71）

A．keyboard

B．modem

C．mouse

D．printer

相似考题

1.71 Delegation mayA. defer the decision on type of approach to be used.B. be interpreted as passive and uncaringC. tend to emphasize the task over the people involved.D. be frequently utilized by a project manager.E. All of the above

2.●A( 71) is a dedicated storage network that provides access to consolidated, block level storage. It is primarily used to make storage devices accessible to servers so that the devices appear as locally attached to the operating system.(71) A. network-attached storageB. storage area networkC. direct attached storageD. computer cluster

3.A(71)is used to communicate with another computer over telephone lines.A．KeyboardB．ModemC．MouseD．Printer

4.● （71） means that a program written for one computer system can be compiled and run on another system with little or no modification.（71）A. PortabilityB. ReliabilityC. AvailabilityD. Reusability

参考答案和解析
正确答案：B

更多“● A (71) is used to communicate with another computer over telephone lines. (71)A.keyboard ”相关问题

  • 第1题：

    Every valid character in a computer that uses even(71)must always have an even number of 1 bits．(71)

    A．parity

    B．check

    C．test

    D．compare


    正确答案：A
    解析：计算机中采用偶校验的每个字符一定含有偶数个1。

  • 第2题：

    ● （71） controls the operation of the computer and performs it′s dataprocessing functions.

    (71)

    A. CPU

    B. Disk

    C. Memory

    D. I/O


    正确答案：A

  • 第3题：

    ● The （71） serves as the computer's CPU.

    （71）

    A. semiconductor

    B. microprocessor

    C. cache

    D. bus controller


    正确答案：B

  • 第4题：

    ●Which is not a computer language? (71)

    (71) A. office

    B. Java

    C. C++

    D. C#


    正确答案：A

  • 第5题：

    ● OSI is a theoretical model that shows how any two different systems can communicate with each other．Router, as a networking device, operate at the (71) layer of the OSI model．

    (71)

    A．transport

    B．application

    C．network

    D．physical


    正确答案：C
    试题（71）分析
     OSI是Open System Interconnect的缩写，意为开放式系统互联。国际标准组织制定了OSI模型。这个模型把网络通信的工作分为7层，分别是物理层、数据链路层、网络层、传输层、会话层、表示层和应用层。
     Router路由器，是运行在OSI中网络层network上的网络通信设备，而不是传输层transport layer，应用层application layer，及物理层physical layer，因此选C
    参考答案
    （71）C

  • 第6题：

    试题（71）

    Which of the following would require real-time processing?（71）

    （71）

    A．Playing a computer game

    B．Executing a program that predicts the state of economy

    C．Printing labels

    D．Listening the music


    正确答案：A
    试题（71）分析
    下列哪项活动需要进行实时处理？
    A电脑游戏
    B预测经济形势
    C打印表格
    D听音乐
    因此，正确答案是A。
    参考答案
    （71）A

  • 第7题：

    The Internet is the world's largest computer(71)．

    A．network

    B．device

    C．display

    D．disk


    正确答案：A
    解析：互联网是世界上最大的计算机网络。

  • 第8题：

    A computer virus is a computer program that is created to make and spread(71)of itself.

    A．programs

    B．virus

    C．copies

    D．files


    正确答案：C
    解析：计算机病毒是一类计算机程序能够自我复制和传播。

  • 第9题：

    ●The most important core component of computer system is (71) ．

    (71)

    A．CD-ROM

    B．DRAM

    C．CPU

    D．CRT


    正确答案：C
    参考译文
    计算机系统中最重要的核心部件是CPU（中央处理机）。
    参考答案
    (71)C

  • 第10题：

    People working together in an office used to ____________.

    A. talk more about handwriting

    B. take more notes on workdays

    C. know better one another's handwriting

    D. communicate better with one another


    正确答案：C
    【解析】由第三段“There was a time when our workdays were filled with little letters, and we recognized one another’s handwriting the way we knew voices or faces”可知

  • 第11题：

    ● （71） refers to the parts of the computer that you can see and touch.

    （71）

    A. Software

    B. Hardware

    C. Hardship

    D. Instruction


    正确答案：B

  • 第12题：

    （）is used to communicate with another computer over telephone lines.

    • A、 keyboard
    • B、 modem
    • C、 mouse
    • D、 printer

    正确答案:B

  • 第13题：

    ●For each blank, choose the best answer from the four choices and write down on the answer sheet.

    (71) is a channel's capacity which directly reflects the data transfer rate of the channel.

    (72) functions in a NetWare network which is used to define addressing schemes.

    (73) is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.

    (74) is the popular LAN developed under the direction of the IEEE802.3.

    (75) is a device which enables digital microcomputers to communicate across analog telephone lines.

    (71) A．The volume

    B．The bandwidth

    C．The noise

    D．The delay

    (72) A．NetBEUI

    B．IP

    C．IPX

    D．NCP

    (73) A．The repeater

    B．The hub

    C．The bridge

    D．The router

    (74) A．Token Ring

    B．Token Bus

    C．Ethernet

    D．FDDI

    (75) A．The repeater

    B．The modem

    C．The hub

    D．The printer


    正确答案：B,C,D,C,B
    【解析】带宽是指信道的容量，能够直接反映出信道数据传输速率。作用在Netware网络中，用以定义寻址方法。路由器是网络层设备，它支持多局域网接口并能够把局域网分为更小冲突域和广播域。以太网是流行的网络，它是在IEEE802.3标准的基础上发展起来的。调制解调器是一种能使得数字信号通过模拟线路进行通信的设备。

  • 第14题：

    ● The line of computing jobs waiting to be run on a computer system might be a (71) . The jobs are serviced in the order of their arrival, that is, the first in is the first out.

    (71)

    A. queue

    B. stack

    C. array

    D. record


    正确答案：A

  • 第15题：

    ● The Internet is the worlds largest computer (71) .

    (71)

    A.network

    B.device

    C.display

    D.disk


    正确答案：A

  • 第16题：

    The Web Browser is a simple program that enables a computer to(71)and view pages on the Web．

    A．downfall

    B．downgrade

    C．downward

    D．download


    正确答案：D
    解析：上网用的浏览器是一种简单的程序，它使计算机能下载并显示网页。

  • 第17题：

    Software refers to(70). The most important software on any computer is(71).

    A．input

    B．programs

    C．output

    D．electronic


    正确答案：B
    解析：译文：软件是一些程序。计算机中最重要的软件是操作系统。

  • 第18题：

    Packet switching is a method of slicing(71) messages into parcels called "packets," sending the packets along different communication(72) as they become available, and then reassembling the packets(73) they arrive at their destination. Prior to the development of packet switching, early computer networks used leased, dedicated telephone circuits to(74) with terminals and other computers. In circuit-switched networks such as the telephone system, a complete point-to-point(75) is put together, and then communication can proceed.

    A．binary

    B．useful

    C．digital

    D．analog


    正确答案：C

  • 第19题：

    A(73)is used to communicate with another computer over telephone lines.

    A．keyboard

    B．modem

    C．mouse

    D．printer


    正确答案：B
    解析：译文：我们可以使用调制解调器、经由电话线与其他计算机通讯。

  • 第20题：

    Any computer, be it a large PC or a small embedded computer, is useless if it has no means to interact with the outside worl

    A.I/O communications for an embedded computer frequently happen over a bus called the (71)．

    B.I/O bus

    C.Memory Bus

    D.Device bus

    E.Intemal Bus


    正确答案：A
    无论是PC系统还是嵌入式计算机系统，如果不和外部交互则会失去该计算机的意义。对于嵌入式计算机而言，I/O通信时和夕l部交互的总线称为I/O总线。

  • 第21题：

    ● A(75) is a device that enables data from one computer to travel to another computer by using telephone lines.

    (75) A. modem

    B. disk

    C. printer

    D. CPU


    正确答案：A

  • 第22题：

    ●(72) is a device that allows a computer to transmit information over a telephone line.

    (72) A．Disk

    B．Modem

    C．Printer

    D．Display


    正确答案：B

  • 第23题：

    All three types of cryptography schemes have unique function mapping to specific.For example,the synunetric key（71）approach is typically used for theencryption of data providmg（72）,whereas asymmetric key cryptography is maidy used in key（73）and noruepudiation,thereby providing confidentiality and authentication.The hash（74）（noncryptic）,on the other hand,does not provide confidentiality but provides messageintegrity,and cryptographic hash algorithms provide message（75）and identity of peers during transport over insecure channels.
    请作答71题

    A.Cryptography
    B.decode
    C.privacy
    D.security

    答案：A
    解析：

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