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
651
Which command would you use to find out more information about a command in Linux or macOS?
Answer:
man
The `man` (manual) command is used to display the manual pages for a command, which provide detailed information about how to use it.
652
The term describing the global network that links millions of people is:
Answer:
Internet
The Internet is an international network of computers that allows for worldwide communication and information sharing.
653
What does "Hibernate" mean in Windows XP/Windows 7?
Answer:
Shutdown the Computer without closing the running applications
Hibernate mode saves the current state of all your open applications and documents, powers down the computer, and restores everything exactly as it was when you power it back on, ensuring no work is lost.
654
Which of the following is NOT an external command?
Answer:
Verify
VERIFY is an internal command in DOS, whereas DOSKEY, PRINT, and FIND are external commands requiring separate executable files.
655
Which of the following is an example of a utility software?
Answer:
Antivirus
Utility software includes tools like antivirus programs that help maintain, analyze, or protect your system.
656
Which of the following is responsible for preventing unauthorized access to the system?
Answer:
Security manager
The security manager provides features such as user authentication and access control to protect the system from unauthorized access.
657
The Windows menu bar includes:
Answer:
All of above
Common menu bar options in Windows applications include File, Edit, Help, and others.
658
A page fault occurs when:
Answer:
A page is accessed that is not in memory
A page fault is an exception raised by the memory management unit when a process tries to access a memory page that is not currently mapped into physical RAM.
659
The special database that holds information about a computer’s user, programs, and hardware devices is called:
Answer:
Windows Registry
The Windows Registry contains configuration settings for the operating system, user preferences, and installed programs.
660
QWERTY relates to which computer component?
Answer:
Keyboard
The QWERTY layout is the standard keyboard arrangement named after the sequence of its first six letters.