4. （ ） (Motion Picture Experts Group) standards are the main algorithms used to compress videos.Due to the fact that movies contain both images and sound, it can compress both audio and video. A. JPEG B. MPEG C. MIDI D. none of the ...

9. Java is a compiled object-oriented programming language used to write applets.（ ） A. 错误 B. 正确 ...

4. www.asp.com is an E-mail address.（ ） A. 错误 B. 正确 ...

14. （ ） is an acronym for local area network.It is a group of computers and other devices dispersed over a relatively limited area and connected by a communications link. A. LAN B. WAN C. MAN D. None of the above ...

9. （ ）, set of conventions governing the exchange of data between hardware and /or software components in a communications network. A. Protocol B. Node C. Packet D. Network ...

4. （ ）, type of LAN that combines star, ring, bus networks, and etc. A. Bus network B. Star network C. Ring network D. Hybrid network ...

9. Linux is an operating system similar to Unix.（ ） A. 错误 B. 正确 ...

4. We abbreviate Virtual Private Networks to VPN.（ ） A. 错误 B. 正确 ...

19. （ ） is one of the components of the CPU, tells the rest of the computer system how to carry out a program's instructions. A. Control unit B. ALU C. RAM D. ROM ...

14. A （ ）,also called a silicon chip or semiconductor,is a small piece of silicon that contains thousands of microminiature electronic circuit components, mainly transistors. A. bus B. chip C. port D. keyboard ...