Why does Java not support multiple inheritance of classes?
Anonymous Quiz
0%
To avoid memory overhead of dynamic class loading
100%
To prevent Diamond Problem ambiguity and method collisions
0%
Because Java does not support virtual functions
0%
To restrict the use of interfaces
What is the size of an empty class in C++ (in bytes)?
Anonymous Quiz
50%
0 bytes
50%
1 byte
0%
4 bytes
0%
8 bytes
What happens if a Base class destructor is NOT declared virtual in C++?
Anonymous Quiz
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The compiler throws a syntax error
100%
Deleting a derived object via a Base pointer will not call the Derived destructor, causing a...
0%
Derived class properties cannot be inherited
0%
Destruction order is reversed
Can a constructor be declared virtual in C++ or Java?
Anonymous Quiz
0%
Yes, in both C++ and Java
0%
Yes, but only in C++
100%
No, constructors cannot be virtual as they require compile-time binding and VPtr is not yet ...
0%
Yes, but only in Java
In Java, how can multiple inheritance of behavior (not state) be achieved?
Anonymous Quiz
0%
Through default methods in multiple Interfaces
0%
By declaring classes as final
100%
Using abstract base classes with static variables
0%
Multiple inheritance is completely impossible in Java
In Java, which of the following method types are virtual by default?
Anonymous Quiz
50%
All static methods
0%
All private methods
50%
All non-static, non-private, non-final methods
0%
Only methods explicitly marked with a virtual keyword
Which of the following is true regarding a Friend Function in C++?
Anonymous Quiz
0%
It is a member function of the class and respects private access
100%
It is a non-member function granted privilege to access private and protected members of the...
0%
It must be declared static in the main namespace
0%
It is inherited by derived classes
Which binding mechanism is used for private, static, and final methods in Java?
Anonymous Quiz
50%
Dynamic / Late Binding
50%
Static / Early Binding
0%
Virtual Table Dispatch
0%
Lazy Resolution
What is the memory footprint of a Class definition in memory before any object is instantiated?
Anonymous Quiz
50%
0 bytes
50%
1 byte
0%
8 bytes
0%
16 bytes
🎯 OOP One-Liners Completed!
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How did you do on these core concept and pitfall questions? Share your score and discuss your doubts in the comments! 💬
Practice more advanced exams and interview questions on Upscorer.in 🚀
UpScorer
Module 2: Basic Concepts of OOP - Revision Notes, Formulas & MCQs | UpScorer
Comprehensive guide to Object-Oriented Programming (OOP) concepts: Classes, Objects, Encapsulation, Abstraction, Inheritance, Polymorphism, Virtual Functions, and SOLID Principles.