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
371
Which of the following cannot transmit a computer virus?
Answer:
A plain text mail
Plain text emails contain only unformatted text and do not execute code, so they cannot carry viruses.
372
The operating system creates _____ from the physical computer
Answer:
Virtual computers
The OS can provide multiple virtual computers or environments, leveraging the resources of a single physical machine.
373
Which operating system was originally developed in the early 1970s at Bell Labs?
Answer:
Unix
Unix began at AT&T’s Bell Labs in the 1970s and has influenced many contemporary operating systems.
374
What is the maximum volume size for FAT32?
Answer:
2 TB
The maximum volume size for FAT32 is 2 TB.
375
Which file system is designed to be a lightweight alternative to NTFS for flash drives and SD cards?
Answer:
exFAT
exFAT (Extended File Allocation Table) is a file system from Microsoft that is designed for flash memory such as USB flash drives and SD cards.
376
To view headers and footers, you must switch to
Answer:
normal view
** Headers and footers are visible in Print Layout view and Print Preview, but not in Normal view.
377
"Ctrl + PageUp" is used to
Answer:
Moves the cursor one Page Up
The correct answer is **A) Moves the cursor one Page Up**. The keyboard shortcut "Ctrl + PageUp" is specifically designed to navigate documents by moving the cursor or view one full page upwards in most text editors, word processors, and web browsers. Option B is incorrect because moving the cursor one paragraph up is typically achieved with "Ctrl + Up Arrow". Option C, while related to page navigation, is less precise; "PageUp" definitely moves a full page, not just a screen, which can sometimes be a partial page depending on screen resolution and document formatting. Option D is incorrect as moving the cursor one line up is accomplished with the "Up Arrow" key. Therefore, "Ctrl + PageUp" is the dedicated shortcut for moving the cursor or view up by one page.
378
What type of operating system is MS-DOS?
Answer:
Command Line Interface
MS-DOS (Microsoft Disk Operating System) is a non-graphical, single-tasking operating system that uses a Command Line Interface (CLI). Users interact with it by typing commands directly into a text-based prompt.
379
Which layer in a computer is positioned between hardware and user programs?
Answer:
Operating system
The operating system sits between the physical hardware and application programs, managing communication.
380
The pointer takes the shape of a hand when hovering over a ______.
Answer:
Hyperlink
The mouse pointer changes to a hand icon when it is placed over a hyperlink, indicating that it can be clicked for navigation.