Programming Fundamentals Quiz

1. What is the primary purpose of a variable in programming?

To store and manage data values

To execute functions only

To create loops automatically

To display output on screen

2. Which data type is best suited for storing decimal numbers?

Integer

Float

String

Boolean

3. In object-oriented programming, what is encapsulation?

Bundling data and methods within a class and restricting access

Creating multiple copies of the same object

Inheriting properties from parent classes

Converting objects to strings

4. A for loop iterates through a range. True or False?

True

False

5. What does the 'return' keyword do in a function?

Exits the function and sends a value back to the caller

Restarts the function from the beginning

Deletes all variables in the function

Prints output to the console

6. Which of the following best describes an array?

A collection of elements stored in contiguous memory locations

A single variable that holds one value

A function that processes data

A loop that repeats a block of code

7. Inheritance allows a class to inherit properties from another class. True or False?

True

False

8. Which statement is true about null and undefined?

They are always identical in all languages

Null is an assigned empty value; undefined means a variable has no value

Undefined is used to clear variables explicitly

Both are never used in modern programming

Submit

10. Which sorting algorithm has an average time complexity of O(n log n)?

Bubble sort

Selection sort

Merge sort

Insertion sort

11. In Python, what keyword is used to define a function?

Define

Func

Def

Function

12. What is the result of 5 % 2 in most programming languages?

2.5

1

3

0

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15. What does an API stand for?

Application Programming Interface

Advanced Program Integration

Automated Process Interface

Application Process Instruction