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Object Oriented Programming

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Mastering Virtual Functions

Test your knowledge of Object Oriented Programming with our engaging quiz focused on virtual functions! Whether you're a student preparing for exams or a developer brushing up on your skills, this quiz covers essential concepts that everyone should know.

Key Features:

10 challenging multiple-choice questions
Instant feedback on your answers
Great for sharpening your programming skills!

10 Questions2 MinutesCreated by CodingWizard123

Virtual function is ______ class function which expected to be redefined in ______ class, so that when reference is made to derived class object using pointer then we can call virtual function to execute ________ class definition version.

A) Base, derived, derived

B) Derived, Derived, Derived

C) Base, derived, base

D) Base, base, derived

What does a virtual function ensure for an object, among the following?

A) Correct method is called, regardless of the class defining it

B) Correct method is called, regardless of the object being called

C) Correct method is called, regardless of the type of reference used for function call

D) Correct method is called, regardless of the type of function being called by objects

Virtual functions are mainly used to achieve _____________

A) Compile time polymorphism

B) Interpreter polymorphism

C) Runtime polymorphism

D) Functions code polymorphism

Which keyword is used to declare virtual functions?

A) virtual

B) virt

C) anonymous

D) virtually

Where the virtual function should be defined?

A) Twice in base class

B) Derived class

C) Base class and derived class

D) Base class

The resolving of virtual functions is done at ______________

A) Compile time

B) Interpret time

C) Runtime

D) Writing source code

In which access specifier should a virtual function be defined?

A) Private

B) Public

C) Protected

D) Default

Virtual functions can never be made _______________

A) Static function

B) Parameterized function

C) Default argument function

D) Zero parameter function

Virtual functions can’t be made friend function of other classes.

A) True

B) False

Which is must condition for virtual function to achieve runtime polymorphism?

A) Virtual function must be accessed with direct name

B) Virtual functions must be accessed using base class object

C) Virtual function must be accessed using pointer or reference

D) Virtual function must be accessed using derived class object only

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