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●WWW is
- ●WWW is a large network of Internet servers providing (75) and other services to terminals running client applications such as a browser. (75)A．modem
- B．compression
- C．hypertext
- D．encode
- ●The development process in the software (74) involves four phases: analysis，design,implementation, and testing. (74)A．maintenance
- B．lifecycle
- C．programming
- D．upgrading
- ● (73) is a query language for manipulating data in a relational database. (73)A. Assemble
- B．SQL
- C． C++
- D． Fortran
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- ●A (72) is a file that contains metadata—that is，data about data. (72)A．document
- B．Excel table
- C. database
- D．data dictionary
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● (71) h
- ● (71) has many elements: text, audio sound, static graphics images, animations, and full-motion video. (71) A．Multimedia
- B． Database
- C． File
- D． Document
- ●TFTP封装在UDP报文中进行传输，其作用是(70)。 (70)A．文件传输
- B．域名解析
- C．邮件接收
- D．远程终端
- ●IE浏览器不能解释执行的是(67)程序。 (67) A. HTML
- B．客户端脚本
- C．服务器端脚本
- D．XML
- ●下列选项中，防范网络监听最有效的方法是(68)。 (68)A．安装防火墙
- B．采用无线网络传输
- C．数据加密
- D．漏洞扫描
- ●数控编程常需要用参数来描述需要加工的零件的图形。在平面坐标系内，确定一个点需要2个独立的参数，确定一段圆弧需要(65)个独立的参数。 (65) A．4
- B． 5
- C． 6
- D． 7
