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
341
How can you delete a file permanently, bypassing the Recycle Bin?
Answer:
Press Shift + Delete key
Using Shift + Delete deletes a file immediately, skipping the Recycle Bin and making recovery more difficult.
342
The standardization of Microsoft applications and Windows OS has made the distribution of viruses:
Answer:
Easier
Because so many systems use the same software, malware creators can target more computers at once, making virus spread easier.
343
If you want to secure a message, what should you use?
Answer:
Cryptosystem
A cryptosystem is a suite of algorithms and processes designed to encrypt and secure messages, ensuring confidentiality in communication.
344
In an email, which line indicates what the message is about?
Answer:
Subject
The Subject line briefly summarizes the content or purpose of the email.
345
The category of software most appropriate for controlling the design and layout of complex documents like newsletters and brochures is:
Answer:
Desktop publishing
Desktop publishing software is designed for creating and formatting complex documents such as brochures and newsletters.
346
Which operating system category is designed to respond and process input in actual time?
Answer:
Real Time System
Real-time operating systems are built to process data and react to inputs instantly, critical for applications like industrial control and embedded systems.
347
Linux is an example of a(n) _____ operating system.
Answer:
Open-source
Linux is distributed with open-source licensing, allowing users to freely modify and share it.
348
What runs directly on hardware and enables other software to execute on a computer?
Answer:
Operating System
An operating system interfaces with hardware and allows other software applications to function.
349
Shortcut Ctrl + F is used to
Answer:
Open Find and Replace Dialog box with activating Find Tab
** Ctrl + F opens the Find and Replace dialog box with the "Find" tab.
350
When a logic bomb is triggered based on a specific date or time, what is it called?
Answer:
Time bomb
A time bomb is a type of logic bomb that activates when a particular time or date is reached.