● A （71） is used to communicate with another computer over telephone lines.（71）A．keyboardB．modemC．mouseD．printer
● A （71） is used to communicate with another computer over telephone lines.
（71）
A．keyboard
B．modem
C．mouse
D．printer
相关考题：
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
● （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
●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
A(71)is used to communicate with another computer over telephone lines.A．KeyboardB．ModemC．MouseD．Printer
Every valid character in a computer that uses even(71)must always have an even number of 1 bits．(71)A．parityB．checkC．testD．compare
●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 volumeB．The bandwidthC．The noiseD．The delay(72) A．NetBEUIB．IPC．IPXD．NCP(73) A．The repeaterB．The hubC．The bridgeD．The router(74) A．Token RingB．Token BusC．EthernetD．FDDI(75) A．The repeaterB．The modemC．The hubD．The printer
● （71） controls the operation of the computer and performs it′s dataprocessing functions.(71)A. CPUB. DiskC. MemoryD. I/O
● 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. queueB. stackC. arrayD. record
● The （71） serves as the computer's CPU.（71）A. semiconductorB. microprocessorC. cacheD. bus controller
The Web Browser is a simple program that enables a computer to(71)and view pages on the Web．A．downfallB．downgradeC．downwardD．download
● 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．transportB．applicationC．networkD．physical
Software refers to(70). The most important software on any computer is(71).A．inputB．programsC．outputD．electronic
试题（71）Which of the following would require real-time processing?（71）（71）A．Playing a computer gameB．Executing a program that predicts the state of economyC．Printing labelsD．Listening the music
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．binaryB．usefulC．digitalD．analog
A(73)is used to communicate with another computer over telephone lines.A．keyboardB．modemC．mouseD．printer
A computer virus is a computer program that is created to make and spread(71)of itself.A．programsB．virusC．copiesD．files
Any computer, be it a large PC or a small embedded computer, is useless if it has no means to interact with the outside worlA.I/O communications for an embedded computer frequently happen over a bus called the (71)．B.I/O busC.Memory BusD.Device busE.Intemal Bus
● A(75) is a device that enables data from one computer to travel to another computer by using telephone lines.(75) A. modemB. diskC. printerD. CPU
People working together in an office used to ____________.A. talk more about handwritingB. take more notes on workdaysC. know better one another's handwritingD. communicate better with one another
●(72) is a device that allows a computer to transmit information over a telephone line.(72) A．DiskB．ModemC．PrinterD．Display
● （71） refers to the parts of the computer that you can see and touch.（71）A. SoftwareB. HardwareC. HardshipD. Instruction
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.CryptographyB.decodeC.privacyD.security
（）is used to communicate with another computer over telephone lines.A、 keyboardB、 modemC、 mouseD、 printer