10. EDI is a set of computer interchange standards for business documents such as invoices, bills, and purchase orders.( ) A. 错误 B. 正确 ...

20. ( ), a secret code assigned to a user which is known by the computer system. Knowledge of the password associated with the user ID is considered proof of authorization. A. Hacker B. Password C. DES D. Authenticate ...

15. The ( ) was the precursor to the Internet. Developed in the late 1960's and early 1970's by the U.S. Department of Defence as an experiment in wide-area-networking that would survive a nuclear war. A. ARPANET B. Apple C. Microsoft ...

10. ( ) ,conversion of either encoded or enciphered text into plaintext. A. Decrypt B. Encryption C. Authenticate D. Hacker ...

5. ( ), the process of compressing a file such that,after being compressed and decompressed, it matches its original format bit for bit. A. Lossy compression B. Lossless compression C. Bitmap D. Vector image ...

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

20. ( ) 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 ...

15. ( ) 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 ...

10. A ( ) is a highly intelligent device that supports connectivity between both like and unlike LANs,and between LANs and WANs or MANs. A. router B. repeater C. switch D. bridge ...

5. ( ), short for modulator/demodulator, device that converts digital signals into a representation of analog form(modulation) to send over phone lines;a receiving modem then converts the analog signal back to a digital signal(demodulatio...