2023-DSA-Object-Oriented Programming (OOP) Basics

What is the main principle of OOP that bundles data and functions together into a single unit?

• Abstraction

• Encapsulation

• Inheritance

• Polymorphism

What is a class in OOP?

• A member variable

• A function that performs a specific task

• A blueprint for creating objects

• A variable used to store an object's state

Which OOP concept allows a class to acquire properties and behaviors from another class?

• Encapsulation

• Inheritance

• Polymorphism

• Abstraction

What is the process of creating a new object based on a class called?

• Inheritance

• Abstraction

• Instantiation

• Polymorphism

What does the term "overloading" mean in OOP?

• Creating multiple objects from a single class

• Redefining a method in a subclass

• Having multiple methods with the same name but different parameters

• Making a method accessible from outside the class

What is the purpose of Data Structures in computer science?

• To store and organize data in a program

• To perform arithmetic operations

• To connect to the internet

• To create user interfaces

Which of the following is NOT an example of a linear data structure?

• Linked List

• Stack

• Queue

• Binary Tree

Which Data Structure follows the Last-In-First-Out (LIFO) principle?

• Linked List

• Stack

• Queue

• Binary Tree

Which Data Structure uses the First-In-First-Out (FIFO) principle?

• Linked List

• Stack

• Queue

• Binary Tree

What is the time complexity of searching an element in an unsorted array of size 'n' using linear search?

• O(log n)

• O(1)

• O(n)

• O(n^2)