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
361
The 1999 computer threat known as Melissa was a highly publicized example of a:
Answer:
E-mail Virus
The Melissa virus spread rapidly by sending itself as an email attachment, infecting contacts in users’ address books.
362
What can you do with a folder?
Answer:
All of the above
Folders can be used to organize, save, move, and delete files within them.
363
Which of the following does NOT support running more than one program at a time?
Answer:
DOS
DOS is a single-tasking operating system, so it cannot handle multiple programs concurrently.
364
Real-time operating systems are most likely used for which type of application?
Answer:
Controlling the fuel injection system of an automobile engine
Real-time OS is vital for applications where immediate, predictable response to sensor input is required, such as in automotive systems.
365
Which operating system is better suited for implementing a client-server network?
Answer:
Windows 2000
Windows 2000 offers robust support and management tools for client-server environments.
366
What is the primary use of the taskbar?
Answer:
All of above
The taskbar helps users launch programs, navigate, and quickly switch among open applications.
367
Which of the following provides a command-line interface for the user to interact with the operating system?
Answer:
Shell
The shell is a command-line interpreter that takes commands from the user and executes them.
368
A dial-up connection allows you to:
Answer:
Connect ISP
Dial-up specifically enables your computer to connect to an Internet Service Provider (ISP) using a standard telephone line for internet access.
369
Which command is used to list the files and directories in the current directory in a Linux or macOS terminal?
Answer:
ls
The `ls` command is used in Unix-like operating systems to list files and directories.
370
Which of the following is an example of a real-time operating system?
Answer:
Process Control
Real-time operating systems are used for process control systems that require immediate processing without delay.