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MCQ Practice

Computer & IT MCQs

____ button is used to go to different slide, a file, a website and sound.

  • A. Toggle
  • B. Enter
  • C. Alt
  • D. Action
Explanation:
The Action button in PowerPoint performs these functions.

Time taken by a computer to process a job or instruction is called ____.

  • A. Execution Time
  • B. Waiting Time
  • C. Delay time
  • D. Real Time
Explanation:
Execution time is the duration to complete a job/instruction.

The ability of a computer system to remain operational despite various failures is ____.

  • A. Relation
  • B. Schema
  • C. Resilience
  • D. Versatility
Explanation:
Resilience is the system’s ability to continue working despite failures.

Which of the following is not a system tool?

  • A. Backup
  • B. Disk defragment
  • C. Virus scanning
  • D. All of these
Explanation:
All listed items are standard tools for system maintenance.

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
Explanation:
All these measures reduce the risk of unauthorized access.

____ occurs when a person sends a message with angry antagonistic content.

  • A. Email Phishing
  • B. Email fatigue
  • C. By installing anti-spam software
  • D. By setting up a WAN
Explanation:
This describes email phishing or flame mail.

A type of malware often disguised as legitimate software is ____.

  • A. Trojan Horse
  • B. PDF
  • C. Chrome
  • D. Safari
Explanation:
A Trojan Horse appears harmless but performs malicious actions.

To protect a computer from viruses, what should you install in your computer?

  • A. Disk cleanup
  • B. Backup wizard
  • C. Antivirus
  • D. None of these
Explanation:
Antivirus software is the standard protection against viruses.

Brain Virus is the name of a computer virus invented by two brothers, Basit and Amjad Farooq Alvi. They belong to which country?

  • A. Pakistan
  • B. Bangladesh
  • C. India
  • D. Afghanistan
Explanation:
The Brain virus was created in Pakistan in 1986.

Which software copies itself without permission and knowledge of the user?

  • A. Program
  • B. Virus
  • C. Antivirus
  • D. None of these
Explanation:
This is the exact definition of a computer virus.