| 1.Video cameras are peripheral. | |
| | 2.The TCP/IP Internet protocol suite is formed from five standards. | |
| | 3.Viruses can cause programs crashing but can't cause entire hard disk deleting. | |
| | 4.The physical layer is concerned with transmitting raw bytes over a communication channel. | |
| | 5.The set fo layers and protocols is called network architecture. | |
| | 6.Multimedia is just two media: sound and pictures. | |
| | 7.PPM refers to the number of pages that a printer prints per minute. | |
| | 8.All virus scanners can kill most known viruses. | |
| | 9.The network architecture is a layer-based. | |
| | 10.When you send an e-mail you should provide the sender's e-mail address. | |
| 1.One of the basic rules of computer security is to change your （ ） regularly. | |
| | 2.One of the greatest features of a home （ ） is the ability to share one Internet connection simultaneously over two or more computers. | |
| | 3.Network software consists of （ ） , or rules by which processes can communicate. | |
| | 4.( ) is a device that enables the computer to handle sounds. | |
| | 5.( ) is used to communicate with another computer over telephone lines. | |
| | 6.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. | |
| | 7.Multimedia will become increasingly ( ) throughout every aspect of our lives. | |
| | 8.（ ）：Messages that are sent electronically over a network. | |
| | 9.Communication through the Internet, the ( ) performs the reverse function. | |
| | 10.Anti-Virus protects your computer from viruses by ( ) your computer's memory and disk devices. | |
| | 11.Bitmap images use a grid of small squares known as （ ） to represent images． | |
| | 12.A firewall is a （ ） system designed to protect an organization’s network against threats. | |
| | 13.The firewall device is a （ ） system for connecting a computer network to other computer network. | |
| | 14.The Internet is the world's largest computer （ ）. | |
| | 15.Photoshop is the leading professional ( ) program, released by Adobe. | |
| | 16.Most （ ） measures involve data encryption and password. | |
| | 17.Computer （ ） is a complex consisting of two or more connected computing units， it is used for the purpose of data communication and resource sharing. | |
| | 18.Modem is ( ). | |
| | 19.Virus is a ( ). | |
| | 20.The OSI model has ( ) layers. | |
| 1.Types of media include ( ). | |
| | 2.With an Internet connection you can get some of the basic services available are：( ). | |
| | 3.Which of the following structure is the topology? | |
| | 4.The Internet is ( ). | |
| | 5.The general types of designs for the communication subnet are ( ). | |
| | 6.Data transfer rules include ( ). | |
| | 7.Viruses can delay their attack for ( ). | |
| | 8.Many viruses do harmful things such as ( ). | |
| | 9.We can ( ) through the Internet. | |
| | 10.The subnet consists of two basic components:( ). | |
|
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