______ access to the computer system should be prevented.
A: Unequal
B: Unfortunate
C: Uniform
D: Unauthorized
A: Unequal
B: Unfortunate
C: Uniform
D: Unauthorized
举一反三
- A( )is a computer system or program that automatically prevents an unauthorized person from gaining access to a computer when it is connected to a network such as the Internet. A: firewall B: gateway C: router D: anti-virus software
- Which of the following is NOT a problem that will arise in Internet voting A: People will gain unauthorized access to a database. B: Online voting system may be distorted. C: Participants will be mainly wealthy and cyber-connected people. D: Computer failure.
- 计算编程 的英文表达？ A: computer programming B: operating system C: computer system D: computer technology
- An Embedded System is a ______ designed for specific control functions within a larger system． A: computer B: program C: computer system D: tool
- ● Computer software is a set of computer ____________(程序). A: programs B: system C: process D: viruses