Selected MCQ

Current Question
Coded entries which are used to gain access to a computer system are called ____.
  • A. Entry codes
  • B. Passwords
  • C. Security commands
  • D. Code words
Correct Answer: B
Explanation:
Passwords are secret codes used to authenticate and gain access to a system.
Related Question 1
A person who used their expertise to gain access to other people's computers to get information illegally or do damage is a ____.
  • A. Hacker
  • B. Spammer
  • C. Instant messenger
  • D. Programmer
Correct Answer: A
Explanation:
A hacker gains unauthorized access to systems.
Related Question 2
A network which is used for sharing data, software and hardware among several users owning microcomputers is called ____.
  • A. WAN
  • B. MAN
  • C. LAN
  • D. VAN
Correct Answer: C
Explanation:
LAN (Local Area Network) is used for local sharing.
Related Question 3
A collection of system programs that controls and coordinates the overall operations of a computer system is called ____.
  • A. System software
  • B. Operating system
  • C. Utility program
  • D. Device driver
Correct Answer: B
Explanation:
The operating system manages all hardware and software resources.
Related Question 4
In which generation of computer operating systems was it used for the first time?
  • A. 1st
  • B. 2nd
  • C. 3rd
  • D. 4th
Correct Answer: C
Explanation:
Operating systems became common in the third generation (1960s) with the advent of integrated circuits.
Related Question 5
How can the risk of unauthorized computer system access be reduced when connected to the internet?
  • A. By installing anti-virus software
  • B. By using a firewall
  • C. By encrypting all data stored in the system
  • D. All of these
Correct Answer: D
Explanation:
All these measures reduce the risk of unauthorized access.