12. ( ) is a way of transferring files over the Internet from one computer to another. A. Internet B. FTP C. E-mail D. ISP ...

7. ( ) (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...

2. Which one is a word processing and text editing tool?( ) A. Photoshop B. Word C. Extreme 3D D. Premiere ...

7. Symmetric key(Private Key):In encryption, a two-key system in which the key used to lock data is made public, so everyone can "lock".A second private key is used to unlock or decrypt.( ) A. 错误 B. 正确 ...

2. A leased line is a line rented from a telephone company for the exclusive use of a customer to access Internet.( ) A. 错误 B. 正确 ...

12. ( ) 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 ...

7. ( ) is the number of times a wave repeats during a specific time interval,that is how many times it completes a cycle in one second. A. Amplitude B. Frequency C. Analog signals D. Digital signals ...

2. Two types of software are ( ) and application software. A. system software B. system call C. system crash D. system hardware ...

7. C++ is an object-oriented programming language.( ) A. 错误 B. 正确 ...

2. Language translators convert the programming instructions into a language that computers understand and process.( ) A. 错误 B. 正确 ...