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
4331
To permanently delete a file in Windows without sending it to the Recycle Bin, you can select the file and press:
Answer:
Shift + Delete
Holding the Shift key while pressing the Delete key bypasses the Recycle Bin and prompts for immediate permanent deletion of the selected item(s).
4332
Creating a "shortcut" or "alias" to a file is different from copying because:
Answer:
The shortcut is a small file that simply points to the original file's location
A shortcut is not a copy of the data. It is a pointer file that, when opened, tells the operating system to open the original file it links to.
4333
You can organize your bookmarks using:
Answer:
Folders
Bookmarks can be organized into folders for easier management in web browsers.
4334
What is the "superuser" or "root" account in Linux/Unix?
Answer:
A special user account that bypasses all permission checks and has full access to the system
The root user has unlimited privileges and can read, write, and execute any file, regardless of its permissions. This makes it powerful but also dangerous if used carelessly.
4335
Why might a file be "locked" and unable to be deleted?
Answer:
The file is currently in use by another program
Operating systems often lock files that are open in an application to prevent them from being deleted or modified simultaneously, which could cause data corruption or program crashes.
4336
If you "delete" a file from your computer's hard drive, what usually happens to it?
Answer:
It is moved to a temporary holding area, such as the Recycle Bin or Trash.
Most modern operating systems have a safety feature that moves deleted files to a special folder (Recycle Bin in Windows, Trash in macOS). This allows users to recover accidentally deleted files. The files are not permanently removed until the Recycle Bin or Trash is emptied.
4337
What is the main advantage of using a hierarchical directory structure?
Answer:
It provides a logical and organized way to manage files and folders.
A hierarchical structure allows users to group related files together, making it easier to locate and manage them.
4338
What does the extension ".pdf" stand for?
Answer:
Portable Document Format
PDF stands for Portable Document Format. It's a file format developed by Adobe to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.
4339
What is a relative path?
Answer:
A path that specifies a location starting from the current directory
A relative path describes the location of a file or directory in relation to the current position in the file system. For example, `docs/file.txt` points to a file within a subfolder of the current directory.
4340
The ".mov" file extension is a video format developed by:
Answer:
Apple
The ".mov" format is a common multimedia container file format developed by Apple and is native to the QuickTime framework.