Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
571
Which statement accurately describes a byte?
Answer:
Eight-digit binary number is called a byte
A byte consists of eight binary digits (bits) and is a standard unit for data in computing.
572
What is the term for buying and selling goods via electronic networks like the internet?
Answer:
E-Commerce
E-Commerce describes any business transaction conducted electronically over the internet, involving the exchange of goods and services.
573
What is the term for the process of starting or restarting a computer?
Answer:
Boot
Booting refers to the sequence that starts or restarts the computer, loading the operating system.
574
What is the first program that runs after a computer boots and loads its graphical interface?
Answer:
Authentication
After the GUI loads, the authentication process generally runs first, requiring user credentials before accessing the desktop.
575
What does copying a process from memory to disk to make room for other processes refer to?
Answer:
Swapping
Swapping is a memory management technique where a process is temporarily moved from RAM to disk to free up space.
576
What actions help optimize your computer’s performance?
Answer:
All of above
Performing regular maintenance, like deleting unnecessary files, defragmenting the disk, and scanning for viruses, collectively helps keep your computer running efficiently.
577
What is the purpose of the system clock in an operating system?
Answer:
All of the above
The system clock is used for a variety of purposes, including keeping track of the time, synchronizing the CPU, and generating interrupts.
578
What is the best option after you install new drivers?
Answer:
Restart
Restarting ensures the newly installed drivers are properly loaded and function correctly.
579
How can you disable extended selection mode?
Answer:
Press Esc to disable
** Press Esc to exit extended selection mode after pressing F8 to enable it.
580
Background color or effects applied on a document is not visible in
Answer:
Print Preview
** Print Preview shows how the document will look when printed, and depending on print settings, background colors/effects may not show.