Inheritance in Object-Oriented Programming

A software development team wants to reuse code across different vehicle types such as Car, Bus, and Motorcycle. They all share features like move() and brake() from a Vehicle class. Which inheritance type should they implement to maximize code reuse?

• Single Inheritance

• Multilevel Inheritance

• Hierarchical Inheritance

• Multiple Inheritance

A developer has a base class Employee and a derived class Manager. They need to access a private member salary of Employee from Manager. Which of the following should they implement?

• Directly call the private variable using object reference

• Redefine salary in the derived class

• Use a getter function defined in the base class

• Make the derived class static

You are working on a student management system. The base class is Person, and the derived classes are Teacher and Student. Which inheritance type best fits this design?

• Hybrid Inheritance

• Multiple Inheritance

• Hierarchical Inheritance

• Multilevel Inheritance

In a hybrid inheritance setup, you encounter ambiguity accessing a function from the common base class through two different base classes. Which issue are you facing?

• Access Violation Error

• Segmentation Fault

• Diamond Problem

• Type Casting Error

A developer uses private inheritance for a class Logger inherited by Application. What is the access level of the public members of Logger inside Application?

• Public

• Protected

• Private

• Inaccessible

A company has a class structure where CEO inherits from Manager, and Manager inherits from Employee. Which type of inheritance does this represent?

• Single

• Multiple

• Multilevel

• Hierarchical

A base class Shape has a method draw(). Two derived classes Circle and Square override this method. What OOP concept does this illustrate?

• Abstraction

• Tight Coupling

• Polymorphism

• Hybrid Inheritance

You're refactoring a legacy system and notice that changes to the base class often cause unexpected behavior in derived classes. What design issue are you likely facing?

• Tight Coupling

• Diamond Problem

• Method Overloading

• Code Reusability

A class Game inherits from two classes PhysicsEngine and AudioEngine. Both base classes inherit from EngineCore. What concept must the developer handle carefully to avoid ambiguity?

• Public Inheritance

• Fragile Base Class

• Diamond Problem

• Multiple Constructors

You are accessing a protected member variable of a base class from its derived class using protected inheritance. Which of the following statements is true?

• The protected member becomes private in the derived class

• The protected member becomes public in the derived class

• The protected member stays protected in the derived class

• The protected member cannot be accessed