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
1411
Programming languages like BASIC, Java, and COBOL are examples of what?
Answer:
High-Level Language
These languages are abstracted from machine instructions and easier for humans to read and write.
1412
What is the term used to describe a version of software that is released before the final version?
Answer:
Beta
In the software release life cycle, a beta version is a pre-release version of software that is given to a group of users for testing before its official release. This stage follows the internal alpha testing phase and helps identify bugs and gather feedback.
1413
Which software is used to create spreadsheets, type documents, and edit photos?
Answer:
Application software
Application software performs specific user-oriented tasks like document editing.
1414
Which concept implements late binding?
Answer:
Virtual function
Virtual functions enable function calls to be resolved at runtime.
1415
Languages like Python, Java, and C# are considered "high-level languages" because:
Answer:
They use a high level of abstraction, making them closer to human language.
High-level languages use words and syntax that are relatively easy for humans to read and write. They abstract away the complex, low-level details of the computer's hardware operations.
1416
What technology is used to convert XML into HTML?
Answer:
XSL
XSL (Extensible Stylesheet Language) is used to transform XML data into HTML.
1417
Before a program can be executed, its source code must be translated into:
Answer:
Machine Language
Regardless of whether a compiler or interpreter is used, the ultimate goal is to convert the human-readable source code into the binary machine language that the computer's processor can actually execute.
1418
What diagram uses symbols to represent a program’s logic or system’s data flow?
Answer:
Flowchart
Flowcharts visually depict processes or decision paths using standardized symbols.
1419
The Java programming language is famous for its "write once, run anywhere" philosophy. This is achieved by compiling Java source code into an intermediate form called:
Answer:
Bytecode
The Java compiler converts source code into platform-independent bytecode. This bytecode is then executed by a Java Virtual Machine (JVM), which is an interpreter tailored for the specific operating system, allowing the same bytecode to run on any system with a JVM.
1420
Which type of software is designed to operate and control the computer hardware and provide a platform for running application software?
Answer:
System Software
System software acts as the intermediary between the computer's hardware and the application programs. The operating system is the prime example, managing resources and providing essential services.