Computer Programming Examination (Python, Java, C++)
Format: Short Answer / Multiple Choice Style
Level: Beginner to Intermediate
SECTION A: General Programming Concepts (1–25)
Q: What is programming?
A: The process of writing instructions for a computer to execute.
Q: What is a programming language?
A: A formal language used to communicate with a computer.
Q: What is a variable?
A: A storage location identified by a name that holds data.
Q: What is an algorithm?
A: A step-by-step method for solving a problem.
Q: What is a compiler?
A: A program that converts source code into machine code.
Q: What is an interpreter?
A: A program that executes code line by line.
Q: What is debugging?
A: The process of finding and fixing errors in code.
Q: What is syntax?
A: The set of rules defining the structure of code in a language.
Q: What is pseudocode?
A: A plain-language outline of a program’s logic.
Q: What is a data type?
A: Defines the type of data a variable can store (e.g., int, float, string).
Q: What is a constant?
A: A value that cannot be changed during program execution.
Q: What is a function?
A: A block of code designed to perform a specific task.
Q: What is recursion?
A: A function calling itself.
Q: What is an array?
A: A collection of elements stored in contiguous memory locations.
Q: What is object-oriented programming (OOP)?
A: A paradigm based on objects containing data and methods.
Q: What is encapsulation?
A: Restricting access to internal object data.
Q: What is inheritance?
A: The ability of one class to derive properties from another.
Q: What is polymorphism?
A: The ability to use a single interface for different data types.
Q: What is abstraction?
A: Hiding complex details and showing only necessary information.
Q: What is a loop?
A: A structure that repeats a block of code multiple times.
Q: What is an IDE?
A: Integrated Development Environment — software for coding and debugging.
Q: What is source code?
A: The original human-readable code written by a programmer.
Q: What is machine code?
A: Binary instructions executed directly by the computer.
Q: What is an API?
A: Application Programming Interface — defines interactions between software components.
Q: What is version control?
A: Managing changes to source code (e.g., using Git).
SECTION B: Python Programming (26–50)
Q: Who developed Python?
A: Guido van Rossum.
Q: When was Python created?
A: 1991.
Q: What is the file extension of Python files?
A: .py
Q: What is indentation used for in Python?
A: To define code blocks (e.g., loops, functions).
Q: What is the keyword to define a function in Python?
A: def
Q: How do you print output in Python?
A: print("Hello World")
Q: What symbol is used for comments in Python?
A: #
Q: What is a list in Python?
A: A collection of ordered, changeable items.
Q: How do you create a list in Python?
A: my_list = [1, 2, 3]
Q: What is a tuple?
A: An ordered, immutable collection of items.
Q: What is a dictionary?
A: A collection of key-value pairs.
Q: How do you start a loop in Python?
A: for or while
Q: What is the keyword to import a module?
A: import
Q: How do you define a class in Python?
A: class MyClass:
Q: What is self in Python classes?
A: Refers to the instance of the class.
Q: What is the use of return?
A: To send a result from a function.
Q: How do you handle exceptions in Python?
A: Using try and except blocks.
Q: What is a lambda function?
A: An anonymous, one-line function defined with lambda.
Q: What is slicing in Python?
A: Extracting parts of sequences using [start:end].
Q: What is the use of len()?
A: Returns the length of an object.
Q: What is the Python Package Index (PyPI)?
A: A repository for third-party Python packages.
Q: What is the difference between == and is?
A: == checks value equality; is checks object identity.
Q: What library is used for data analysis in Python?
A: Pandas.
Q: What is the keyword to exit a loop early?
A: break
Q: How do you read input from a user?
A: input("Enter value: ")
SECTION C: Java Programming (51–75)
Q: Who developed Java?
A: James Gosling.
Q: When was Java released?
A: 1995.
Q: What is the extension of Java files?
A: .java
Q: What is the JVM?
A: Java Virtual Machine — executes Java bytecode.
Q: What is JDK?
A: Java Development Kit — includes tools to develop Java programs.
Q: What is JRE?
A: Java Runtime Environment — runs Java applications.
Q: What is a class in Java?
A: A blueprint for creating objects.
Q: What keyword is used to create an object?
A: new
Q: What is the main method signature in Java?
A: public static void main(String[] args)
Q: What does System.out.println() do?
A: Prints text to the console.
Q: What are Java data types divided into?
A: Primitive and Non-primitive.
Q: Give two examples of primitive types.
A: int, double.
Q: What is the default value of an uninitialized int variable?
A: 0.
Q: What keyword prevents inheritance?
A: final
Q: What is a constructor?
A: A special method used to initialize objects.
Q: Can constructors be overloaded?
A: Yes.
Q: What is method overloading?
A: Having multiple methods with the same name but different parameters.
Q: What is inheritance in Java?
A: When one class derives attributes from another using extends.
Q: What is an interface?
A: A reference type defining abstract methods.
Q: What is the keyword for inheritance?
A: extends
Q: What is exception handling in Java?
A: Managing runtime errors using try-catch.
Q: What keyword is used to inherit a class?
A: extends
Q: What is the parent class of all Java classes?
A: Object
Q: What is the keyword for packages?
A: package
Q: What is garbage collection?
A: Automatic memory management in Java.
⚙ SECTION D: C++ Programming (76–100)
Q: Who developed C++?
A: Bjarne Stroustrup.
Q: What is the file extension of C++ files?
A: .cpp
Q: What does OOP stand for?
A: Object-Oriented Programming.
Q: What is the entry point of a C++ program?
A: int main()
Q: What is #include <iostream> used for?
A: To include input/output stream functionality.
Q: What does cout do?
A: Outputs data to the console.
Q: What does cin do?
A: Takes input from the user.
Q: What symbol is used for comments in C++?
A: // for single-line, /* */ for multi-line.
Q: What is a pointer?
A: A variable that stores a memory address.
Q: What is a reference variable?
A: An alias for another variable.
Q: What is function overloading?
A: Multiple functions with the same name but different parameters.
Q: What is a class?
A: A user-defined data type with data members and methods.
Q: What is an object?
A: An instance of a class.
Q: What is inheritance?
A: When a class derives properties from another class.
Q: What is polymorphism?
A: The ability of a function or method to behave differently based on input.
Q: What keyword is used to define a class?
A: class
Q: What is the scope resolution operator?
A: :: — used to define methods outside the class.
Q: What is a constructor in C++?
A: A special method called automatically when an object is created.
Q: What is a destructor?
A: A method called automatically when an object is destroyed.
Q: What is the difference between public, private, and protected?
A: They define access levels of class members.
Q: What is a header file?
A: File containing function declarations and macros.
Q: What does namespace do?
A: Groups identifiers to avoid name conflicts.
Q: What is dynamic memory allocation?
A: Allocating memory during runtime using new or malloc.
Q: What is STL?
A: Standard Template Library — prebuilt C++ classes and functions.
Q: What is the difference between C and C++?
A: C++ supports OOP and has features like classes and templates, while C is procedural
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