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
171
To open a file in most software, which menu bar option would you typically use?
Answer:
None of above
Most programs use the "File" menu to open files. Since "File" is not listed, “None of above” is correct.
172
What is the purpose of the `>` (greater than) symbol in a command?
Answer:
To redirect the output of a command to a file
The `>` symbol is used for output redirection. For example, `dir > files.txt` will redirect the output of the `dir` command to a file named "files.txt".
173
A real-time operating system is considered "hard" if:
Answer:
It must meet deadlines every time
A hard real-time system is a system where it is absolutely imperative that responses occur within the required deadline.
174
From which location can you start an application?
Answer:
Run
The "Run" dialog allows direct launching of applications or documents by entering their names.
175
When you double-click "My Computer," what is displayed?
Answer:
Show the list of your computer drives
Double-clicking "My Computer" (or "This PC") displays all disk drives and partitions on the system.
176
Pressing the _____ key will send the cursor to the start of a text line.
Answer:
Home
The Home key quickly moves the cursor to the beginning of the current line.
177
A URL refers to:
Answer:
The address of a document or page on the World Wide Web
URL (Uniform Resource Locator) is the web address used to locate a specific document or webpage online.
178
Instructions from a computer program that are used most often are usually accessed from:
Answer:
Cache memory
Cache memory provides quick access to frequently used instructions, improving processing speed.
179
What is a USB flash memory device commonly called?
Answer:
USB flash drive
USB flash drives are portable storage devices that connect via the USB port, providing quick file transfer and storage.
180
Which Windows version supports a 64-bit processor?
Answer:
Windows XP
Windows XP introduced official support for 64-bit processors through its x64 edition.