某公司为方便远程客户访问公司的某些数据资源,允许客户通过Internet访问公司的FTP服务器,其网络拓扑结构如图7-4所示。在客户机与FTP服务器之间采用(54)协议,可方便地实现在网络层对数据进行加密。
In a data warehouse environment, data is only valuable when it is organized and displayed as(75)
Communication networks can be classified in terms of their physical arrangement or(74)Three common(74)are the star, bus, and ting.
A computer network links computers together to allow users to share hardware, software, and(73)
The basic concept of a data(72)is the difference between data and information.
There is free firewall software available that can run on minimal hardware and provide a good level of(71)to your network.
A multimedia system allows end users to share, transfer and process a variety of forms of information in a(70)manner.
A small network may only connect two computers inside a home to share a single printer and Internet(69)
The World Wide Web is the latest evolution of an effort to make information on computers(68)the world available to as many users as possible.
In recent years, TCP/IP has also begun to be used by telephone companies to provide faster, cheaper telephone(67)
A high-level language is an artificial language with which we can write various(66)
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