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
541
By default, on which page is the header or the footer printed?
Answer:
on every page
** By default, headers and footers are printed on every page, unless set otherwise.
542
The tab key is mainly used to:
Answer:
Only A and C
The tab key moves the cursor to the next tab stop, often indenting text or moving the cursor horizontally.
543
A type of software program that carries out useful functions while secretly allowing harmful actions is called:
Answer:
Trojan Horse
A Trojan horse is disguised as a legitimate program to perform tasks for users but enables hidden malicious activities.
544
What is the term for the layer that separates hardware from user programs in a computer system?
Answer:
Operating system
The operating system serves as the intermediary between computer hardware and the user’s programs.
545
What unit is used to measure the speed of a LAN (Local Area Network)?
Answer:
MBPS (Mega Bits per Second)
LAN speeds are commonly measured in megabits per second (Mbps), indicating data transfer rate.
546
What is a key advantage of ext4 over its predecessor, ext3?
Answer:
All of the above
ext4 offers several improvements over ext3, including support for larger files and volumes, better performance, and backward compatibility.
547
What is the main page of a website commonly called?
Answer:
Home page
The home page is the primary or introductory page of a website that visitors see first.
548
What is the purpose of a file system's cluster or block?
Answer:
To store the file's data in small, manageable chunks
A cluster or block is the smallest amount of disk space that can be allocated to hold a file.
549
The process of loading the operating system into a computer’s RAM is called:
Answer:
Booting
Booting refers to the initial loading of the operating system into memory when a computer starts.
550
Arrange the following common data elements from the smallest to the largest:
Answer:
Character, field, record, file, database
Data hierarchy starts from character, then field, record, file, and finally database as the largest.