Free Test Concepts of inheritanc... – C++ Lan...

Q1: What is hybrid inheritance?

A. Combination of two or more types of inheritance B. Inheritance with no base class C. Only multiple inheritance D. Only multilevel inheritance

Q2: Which of the following is an example of hybrid inheritance?

A. Class A inherited by B and C, and B and C inherited by D B. Class A inherited by B only C. Class A inherits from B and C D. No inheritance used

Q3: What is a potential problem of hybrid inheritance?

A. Diamond problem B. No problem C. Only single inheritance allowed D. Inheritance loops

Q4: How does C++ solve the diamond problem in hybrid inheritance?

A. Using virtual inheritance B. Using private inheritance C. Using friend classes D. No solution

Q5: In hybrid inheritance, which keyword helps prevent multiple copies of base class?

A. virtual B. final C. override D. abstract

Q6: Which is true about constructors in hybrid inheritance?

A. Base class constructors called once B. Base constructors called multiple times C. Derived constructors called first D. Constructors are not called

Q7: Can hybrid inheritance include single, multiple, and multilevel inheritance?

A. Yes B. No C. Only single and multiple D. Only multiple and multilevel

Q8: Is hybrid inheritance supported in C++?

A. Yes B. No C. Only in Java D. Only in C

Q9: Which of these inheritance types is NOT part of hybrid inheritance?

A. No inheritance B. Single inheritance C. Multiple inheritance D. Multilevel inheritance

Q10: How do you declare virtual inheritance in C++?

A. class Derived : virtual public Base {}; B. class Derived : public virtual Base {}; C. class Derived : virtual Base {}; D. None of the above

Q11: What is the main advantage of hybrid inheritance?

A. Combines benefits of multiple inheritance types B. Slower code C. No reusability D. Increases complexity only

Q12: What is a drawback of hybrid inheritance?

A. Complexity and ambiguity B. Faster compilation C. Reduced functionality D. No drawback

Q13: Which statement is true about member function overriding in hybrid inheritance?

A. Derived class can override base class functions B. Overriding not allowed C. Only base functions called D. No virtual functions allowed

Q14: How does C++ distinguish between inherited members in hybrid inheritance?

A. Using scope resolution operator B. Using friend functions C. Using private inheritance only D. No distinction possible

Q15: Can hybrid inheritance be used to model real-world scenarios effectively?

A. Yes B. No C. Only for small programs D. Only in templates

Q16: Which of the following is NOT true for hybrid inheritance?

A. It combines multiple inheritance types B. It can cause ambiguity without virtual inheritance C. It is always the simplest form of inheritance D. Virtual inheritance solves diamond problem

Q17: Which inheritance type uses a single base and multiple derived classes?

A. Hierarchical inheritance B. Multiple inheritance C. Hybrid inheritance D. Multilevel inheritance

Q18: In hybrid inheritance, can multiple inheritance be combined with multilevel inheritance?

A. Yes B. No C. Only in C# D. Only in Java

Q19: What keyword helps resolve ambiguity in hybrid inheritance?

A. virtual B. override C. friend D. final

Quiz for Concepts of inheritance and types of inheritance hybrid