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Today,it’s hard to imagine any industry or business that has not been affected by computer-based information system and computer applications.
Most experts agree on the fundamental difference between data and information.Data are raw facts about the organization and its business transactions.Most data items have little meaning and use by themselves.Information is data that has been（）and organized by processing and purposeful intelligence.The latter,purposeful intelligence,is crucial to the definition—People provide the purpose and the intelligence that produces true（）.In other words,data are a by-product of doing business.Information is a resource created from the data to serve the management and decision-making needs of business.
Information technology(IT)is a contemporary term that describes the combination of computer technology(hardware and software)with telecommunications technology(data,image,and voice networks).Information technology has created a data and information（）in virtually all businesses.The ability of businesses to harness(利用)and manage this data and information has become a critical success factor in most businesses.
An information system is an arrangement of people,data,processes,information presentation,and information technology that interact to support and improve day-to-day operations in a business,as well as support the problem-solving and decision making needs of management and users.Stated simply,information systems（）data into useful information.An information system exists with or without a computer.But when information technology is used,it significantly（）the power and potential of most information systems.
问题1选项
A.formed
B.cleaned
C.refined
D.resigned
问题2选项
A.information
B.data
C.intelligence
D.purpose
问题3选项
A.exposure
B.slump
C.exclusion
D.explosion
问题4选项
A.modify
B.clean
C.transform
D.transfer
问题5选项
A.influence
B.expands
C.change
D.develop
一台主机的IP地址为202.123.25.36，掩码为255.255.254.0。如果该主机需要在该网络进行直接广播，那么它应该使用的目的地址为（ ）
在计算机系统的日常维护工作中，应当注意硬盘工作时不能__(2)__。另外，需要防范病毒，而__(3)__是不会被病毒感觉的。
有 4 个 IP 地址：201.117.15.254、201.117.17.01、201.117.24.5 和 201.117.29.3，如果子网掩码为 255.255.248.0，则这 4 个地址分别属于3个子网；其中属于同一个子网的是（）
在异步通信中，每个字符包含1位起始位、7位数据位、1位奇偶位和1位终止位，每秒钟传送200个字符，采用4相位调制，则码元速率为（）。
在 Windows 中，运行（ ）命令得到下图所示结果。以下关于该结果的叙述中，错误的是（ ）。
Pinging 59.74.111.8 with 32 bytes of data:
Reply from 59.74.111.8: bytes=32 time=3ms TTL=60
Reply from 59.74.111.8: bytes=32 time=5ms TTL=60
Reply from 59.74.111.8: bytes=32 time=3ms TTL=60
Reply from 59.74.111.8: bytes=32 time=5ms TTL=60
Ping statistics for 59.74.111.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 3ms, Maximum = 5ms, Average = 4ms
在ISO OSF/RM参考模型中，七层协议中的__(1)__利用通信子网提供的服务实现两个用户进程之间端到端的通信。在这个模型中，如果A用户需要通过网络向B用户传送数据，则首先将数据送入应用层，在该层给它附加控制信息后送入表示层；在表示层对数据进行必要的变换并加头标后送入会话层；在会话层加头标送入传输层；在传输层将数据分解为__(本题)__后送至网络层；在网络层将数据封装成__(3)__后送至数据链路层；在数据链路层将数据加上头标和尾标封装成__(4)__后发送到物理层；在物理层数据以__(5)__形式发送到物理线路。B用户所在的系统接收到数据后，层层剥去控制信息，把原数据传送给B用户。
在OSI/RM中，解释应用数据语义的协议层是（）。
在TCP/IP协议栈中，ARP协议的作用是（）,RARP协议的作用是（请作答此空）。
在地址 http://www.dailynews.com.cn/channel/welcome.htm 中，www.dailynews.com.cn 表示（ ），welcome.htm 表示（请作答此空）。
在电子表格软件Excel中，假设A1单元格的值为15，若在A2单元格输入“=AND(15＜A1，A1＜100)”，则A2单元格显示的值为 （）
