OOP Multiple Inheritance Quiz Online Practice Test

1. Multiple inheritance refers to ____________.

A class being derived from another class

A class being derived from two or more classes

A class being derived from two or more derived classes

A class being derived from exactly one class

2. What issue can occur with multiple inheritance if hierarchical inheritance was previously used for its base classes?

Diamond problem

Circle problem

Triangle problem

Loop problem

3. To implement multiple inheritance, a program must include how many classes?

Only 1

At least 1

At least 3

Exactly 3

4. Which language imposes restrictions on multiple inheritance?

C++

PHP

Smalltalk

Java

5. Can a derived class have all its base classes defined as abstract classes?

Yes, always

Yes, provided the derived class implements all methods

No, since abstract classes lack constructors

No, it’s not possible

6. In the declaration class A: public class B, public class C {// class body ;};, where class A inherits from both class B and class C, which constructor is invoked first?

Class A

Class B

Class C

All constructors simultaneously

7. What causes the diamond problem in multiple inheritance?

Ambiguity and conflict from methods with the same name

Conflicts between methods inherited from superclass's

Overloading of the derived class with methods from more than two classes

Inability of the derived class to identify the originating class of inherited methods

8. In a multiple inheritance scenario, how many base classes can a derived class have?

Only 2

At least 2

At most 2

As many as needed

9. What is a method to resolve the diamond problem in multiple inheritance?

Using an alias name

Implementing a separate derived class

Applying the virtual keyword to functions with the same name

It cannot be resolved

10. To access all members from both parent and derived classes in a multiple inheritance scenario, which object should be utilized?

Object of the derived class

Objects of the parent classes

Abstract derived class

A new class derived from the existing derived class

11. When all members of the base classes are private, what is the consequence?

Multiple inheritance becomes pointless

The members will automatically become public

The derived class will retain access to these members

A compile-time error will occur

12. Must every class in a multiple inheritance setup have a constructor?

Yes, always

Yes, but only if no abstract classes are involved

No, only the classes in use need constructors

No, constructors are not required for any class

Test Name:	OOP Multiple Inheritance Quiz
Subject Category:	Computer Science
Test Type:	Multiple Choice Questions
Total Score / Questions:	12 / 12
Time Allowed:	10 Min
Who Should Practice this Test:	Students, job seekers, or professionals preparing for competitive exams and interviews.

OOP Multiple Inheritance MCQ Quiz Online Practice Test