C++ Programming Quiz | Orygyns Coding Platform

Level 2: Data & Logic (Medium)

4. What is the correct way to declare a string variable in C++?

string name = "Rajan";
char name = "Rajan";
String name = 'Rajan';

5. What is the modulus operator % used for?

Calculates percentage
Returns the remainder of an integer division
Defines a pointer

6. Which of the following statements is true about Function Overloading?

Only one function is allowed in a program.
Functions must have different names but the same parameters.
Functions having the same name but different parameters

Level 3: Arrays & OOP Principles (Important)

7. What is an array in C++?

A dynamic variable that automatically resizes
A collection of elements of the same type stored in contiguous memory
A function parameter

8. Which concept allows a class to inherit properties and methods from another class?

Polymorphism
Abstraction
Inheritance

9. What does Encapsulation mean in OOP?

Hiding internal data state and restricting access
Duplicating a class completely
Overloading methods to act differently

Level 4: Classes & Objects

10. How do you correctly create an object of a class named Car?

Car c1;
new Car c1;
class Car = new c1;

11. What is a Constructor?

A function used to destroy memory leaks
A special function that runs when an object is instantiated
An error handling block

12. How is a Destructor identified in C++?

By the keyword 'delete'
With a tilde (~)
By ending the class with a semicolon

Level 5: STL & Error Handling

13. What is a vector in the C++ Standard Template Library (STL)?

A dynamic array that can automatically resize
A physics library for calculating speed
A function to delete variables

14. Which vector method is used to add an element to the end?

add()
insert_end()
push_back()

15. In C++ exception handling, which keyword is used to signal an error has occurred?

error
throw
catch

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