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MCQ Practice

Computer & IT MCQs

A program that performs a useful task while simultaneously allowing destructive acts is a ____.

  • A. Worm
  • B. Trojan horse
  • C. Virus
  • D. Macro virus
Explanation:
A Trojan horse disguises itself as legitimate software while containing malicious code.

A program that can execute high-level language programs is called ____.

  • A. Compiler
  • B. Interpreter
  • C. Sensor
  • D. Circuitry
Explanation:
An interpreter executes high-level code line by line.

A program that acts as an intermediary between a user of a computer and the computer hardware is called ____.

  • A. Utility Software
  • B. Computer Software
  • C. Operating System
  • D. Application Software
Explanation:
The operating system manages hardware and provides services to applications.

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
Explanation:
A hacker gains unauthorized access to systems.

A number system that has eight different symbols to represent any quantity is known as ____.

  • A. Binary
  • B. Octal
  • C. Decimal
  • D. Hexadecimal
Explanation:
Octal is a base-8 number system.

Several letters that appear a little above the normal text are called ____.

  • A. Superscript
  • B. Subscript
  • C. Super text
  • D. Top text
Explanation:
Superscript appears above the normal text line.

A normal CD-ROM usually can store up to what data?

  • A. 680 KB
  • B. 680 Bytes
  • C. 680 MB
  • D. 60 GB
Explanation:
A standard CD-ROM holds approximately 650–700 MB.

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
Explanation:
LAN (Local Area Network) is used for local sharing.

A modem is connected to ____.

  • A. a telephone line
  • B. a keyboard
  • C. a printer
  • D. a monitor
Explanation:
A modem connects to a telephone line or broadband for internet access.

A master document contains ____ each of which contains a pointer to a file on a disk.

  • A. Sub-documents
  • B. Hyperlink
  • C. Bookmarks
  • D. Placeholders
Explanation:
Master documents link to sub-documents.