| 1.PPM refers to the number of pages that a printer prints per minute. | |
| | 2.We can use multimedia in Education, Edutainment and so on. | |
| | 3.The hosts are connected by the cables. | |
| | 4.The network architecture is a layer-based. | |
| | 5.The set fo layers and protocols is called network architecture. | |
| | 6.The physical layer is concerned with transmitting raw bytes over a communication channel. | |
| | 7.The basic function of transport layer is to accept data from the session layer, and pass them to the network layer. | |
| | 8.Only users need to view the internet as a network. | |
| | 9.Just about any modern computer can handle text processing and produce basic sounds. | |
| | 10.Data communications equipment (DCE) accepts the serial data stream from the DTE. | |
| 1.A （ ） computer is a personal computer whose hardware is capable of using any or all of the following media in a program : audio,text,graphics,video and animation. | |
| | 2.The （ ） in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America. | |
| | 3.A computer virus is a computer program that is created to make and spread ( ) of itself. | |
| | 4.The OSI model has ( ) layers. | |
| | 5.( ) is a device that enables the computer to handle sounds. | |
| | 6.One use of networks is to let several computers share （ ） such as file system,printers,and tape drives. | |
| | 7.A （ ） infected computer may lose its data. | |
| | 8.The Internet is an open system, and most information is available to everyone. It is very important to add （ ） to existing system for protecting the secret information. | |
| | 9.Which of the following expressions is true about the Internet? | |
| | 10.One of the basic rules of computer security is to change your （ ） regularly. | |
| | 11.The ( ) is a collection of computers connected together by phone lines allows for the global sharing of information. | |
| | 12.Most （ ） measures involve data encryption and password. | |
| | 13.The display screen is the most common ( ) device used to show you what the computer is doing. | |
| | 14.The source code of a Web page consists of ( ). | |
| | 15.（ ）：Messages that are sent electronically over a network. | |
| | 16.Anti-Virus protects your computer from viruses by ( ) your computer's memory and disk devices. | |
| | 17.( ) is used to communicate with another computer over telephone lines. | |
| | 18.One of the greatest features of a home （ ） is the ability to share one Internet connection simultaneously over two or more computers. | |
| | 19.Multimedia is a ( ). | |
| | 20.The best way to describe the concept of playing a guitar is use of ( ). | |
| 1.The subnet consists of two basic components:( ). | |
| | 2.Which of the following structure is the topology? | |
| | 3.The Internet is ( ). | |
| | 4.Applications in the Internet can be found everywhere: ( ). | |
| | 5.Types of media include ( ). | |
| | 6.Viruses can delay their attack for ( ). | |
| | 7.Data transfer rules include ( ). | |
| | 8.Many viruses do harmful things such as ( ). | |
| | 9.We can ( ) through the Internet. | |
| | 10.The general types of designs for the communication subnet are ( ). | |
|
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