Classes and Inheritance MCQs in C++ – OOP

By: Prof. Dr. Fazal Rehman | Last updated: May 2, 2025

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1. : We can access which kind of data members in the derived class?





2. : We can’t access which kind of data members in the derived class?





3. : We can access which kind of data members outside the class?





4. : We can’t access which kind of data members outside the class?





5. : Which of the following is the correct syntax to declare a class?





6. : Which of the following is the correct syntax to declare a class?





7. : Which of the following is the correct syntax to declare data members in a class?





8. : Which of the following is the correct syntax to define a function for a class?





9. : What is the correct syntax to declare object for a class?





10. : How many ways to use existing classes to define a new class?





11. : Composition is called a ___________.





12. : When a data member of the new class is an object of another class is called ___________.





13. : We can define a new class from an existing class, which of the following is used?





14. : Use of one or more classes within the definition of another class is also called ___________.





15. : Using keywords as an identifier causes is called ________.





16. : Rectangle symbol in flowchart is called _________.





17. : All keywords bool, catch, private, public, this and throw are introduced in ____________.





18. : First object-oriented language ‘Smalltalk’ appeared in _________ year.





19. : A member function will access data and return value to the user when it is __________.





20. : Data in an object-oriented language is safe from accidental alteration as it is __________.





21. : If we want to read a data item in an object, the member function in an object is __________.





22. : Data encapsulation and data hiding are key features of __________.





 
Access Specifiers Private Protected Public
Access in same class YES YES YES
Access in derived class NO YES YES
Access outside the class NO NO YES
 

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