Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
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
51
Which keyboard function key is standardly used to rename a selected file or folder in Windows?
Answer:
F2
In the Windows operating system, pressing the F2 key while a file or folder is selected allows the user to immediately edit the name of that item. This is a standard shortcut key used across most versions of Windows for quick file management.
52
In file handling, what is a sequence of characters commonly referred to as?
Answer:
Text stream
A text stream is a sequence of characters organized into lines, where each line is terminated by a newline character. It is designed for human-readable data and is one of the two primary stream types in C.
53
From a functional perspective, which of the following categories can be used to classify computer files?
Answer:
Program file
Files are often categorized by their function within a computing system. A program file contains executable code or instructions for the computer to perform specific tasks. While backup and temporary files are also types of files, 'program file' is a primary functional classification representing the software instructions themselves.
54
What is the technical term for a directory that is contained within another directory?
Answer:
Sub directory
In file system architecture, a directory located inside another directory is referred to as a subdirectory. This hierarchical structure allows for the organized storage and management of files and folders within a computer's operating system.
55
What type of file is typically associated with the '.mov' file extension?
Answer:
Animation/movie file
The .mov file extension is a common multimedia container file format developed by Apple. It is primarily used for storing movies, video clips, and other animation data, making it a standard format for high-quality video playback across various media players and editing software.
56
In the context of data management, what does the term 'reproduction' refer to?
Answer:
Making Data Duplicate
Reproduction in data handling refers to the act of creating copies or duplicates of existing data. This is often done for redundancy, backup purposes, or to distribute the same information across multiple locations or systems.
57
Which of the following file extensions is commonly associated with video file formats?
Answer:
All of these
Video files are stored in various formats, each identified by specific file extensions. .mp4, .avi, and .mov are all widely recognized and standard file extensions used for storing digital video content across different operating systems and media players.
58
Which of the following file formats are commonly used for graphics and images?
Answer:
All of them
JPEG, GIF, and BMP are all standard file formats used for storing digital images. JPEG is commonly used for photographs due to its compression, GIF is widely used for simple animations and web graphics, and BMP is a raster graphics image file format used to store bitmap digital images independently of the display device.
59
Where are files temporarily stored after they are deleted from a computer system?
Answer:
Recycle Bin
The Recycle Bin is a system folder in Windows that acts as a holding area for deleted files. This feature allows users to restore files that were accidentally removed before they are permanently erased from the storage drive.
60
What is the full form of the image file format PNG?
Answer:
Portable Network Graphics
PNG stands for Portable Network Graphics. It is a raster-graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for the Graphics Interchange Format (GIF) and is widely used on the web for its ability to handle transparency and high-quality images.