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Inheritance MCQ

1. According to the following punnett square, the female genotype is _____.

Homozygous

Tt or heterozygous

Answer

Correct Answer: Tt or heterozygous

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2. Look at the following code. the method in line will override the method in line .

Line 4, Line 10

Line 1, LIne 4

Line 0, Line 4

None of these

Answer

Correct Answer: Line 4, Line 10

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3. Inheritance is an example of a(n) ____ relationship.

Is-a

Has-a

Both A & B

None of the above

Answer

Correct Answer: Is-a

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4. A derived class always ____ case or instance of the more general base class.

Is-a

True

False

Class

Answer

Correct Answer: Is-a

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5. A class that represents the most general entity in an inheritance hierarchy is called a/an ____.

Default class

Superclass

Subclass

Answer

Correct Answer: Superclass

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6. ________ is commonly used to extend a class, or to give it additional capabilities.

Inheritance

Privacy

The constructor

The destructor

Answer

Correct Answer: Inheritance

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7. ____ is the ability to use the same expression to denote different operations.

Inheritance

Encapsulation

Polymorphism

Composition

Answer

Correct Answer: Polymorphism

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8. In Multipath inheritance, in order to remove duplicate set of records in child class, we___________.

All

Write virtual functions is base class

Make base class as virtual base class

Write Virtual function in parent classes

Answer

Correct Answer: Make base class as virtual base class

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9. If base class has constructor with arguments, then it is ________________ for the derived class to have constructor and pass the arguments to base class constructor.

Compiler dependent

Mandatory

Optional

Error

Answer

Correct Answer: Mandatory

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10. During a class inheritance in CPP, if the visibility mode or mode of derivation is not provided, then by default visibility mode is___________.

Public

Protected

Friend

Private

Answer

Correct Answer: Private

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11. When a base class is privately inherited by the derived class, then_______________.

None

Protected members of the base class become private members of derived class And public members of the base class become private members of derived class

Protected members of the base class become private members of derived class

Public members of the base class become private members of derived class

Answer

Correct Answer: Protected members of the base class become private members of derived class And public members of the base class become private members of derived class

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12.
In case of inheritance where both base and derived class are having constructor and destructor, then which if the following are true?
1. Constructors are executed in their order of derivation
2. Constructors are executed in reverse order of derivation
3. Destructors are executed in their order of derivation
4. Destructors are executed in reverse order of derivation

Only 2, 3

Only 1 , 3

Only 2 ,4

Only 1 , 4

Answer

Correct Answer:

Only 1 , 4

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13. Class X, class Y and class Z are derived from class BASE. This is _____________ inheritance.

Multilevel

Single

Hierarchical

Multiple

Answer

Correct Answer: Hierarchical

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14. Can struct be used as Base class for inheritance ?

Yes

Answer

Correct Answer: Yes

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15. What is difference between protected and private access specifiers in inheritance?

Private member is not inheritable and not accessible in derived class

Both are inheritable but protected is not accessible in the derived class

Protected member is inheritable and also accessible in derived class

Both are inheritable but private is accessible in the derived class

Answer

Correct Answer: Protected member is inheritable and also accessible in derived class

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16. Private members of the class are not inheritable.

False

True

Answer

Correct Answer: False

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17. In case of inheritance where both base and derived class are having constructors, when an object of derived class is created then___________.

Constructor of derived class will be executed first followed by base class

Constructor of derived class will be invoked first

Constructor of base class will be invoked first

Constructor of base class will be executed first followed by derived class

Answer

Correct Answer: Constructor of base class will be executed first followed by derived class

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18. If the derived class is struct, then default visibility mode is_______.

Protected

Public

Private

Struct can’t inherit class

Answer

Correct Answer: Public

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19. Can we pass parameters to base class constructor though derived class or derived class constructor?

Yes

Answer

Correct Answer: Yes

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20. The derivation of Child class from Base class is indicated by ____ symbol.

;

Answer

Correct Answer: :

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21.
When base class is derived in protected mode, then______________.
1. public members of base class become private members of derived class
2. public members of base class become protected members of derived class
3. public members of base class become public members of derived class
4. protected members of base class become protected members of derived class
5. protected members of base class become private members of derived class
6. protected members of base class become public members of derived class

Only 2, 6

Only 1, 5

Only 1, 6

2 , 4

Answer

Correct Answer:

2 , 4

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22. Reusability of the code can be achieved in CPP through:

None

Inheritance

Encapsulation

Polymorphism

Answer

Correct Answer: Inheritance

Note: This Question is unanswered, help us to find answer for this one

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MCQ on File Handling	MCQ on Fortran
MCQ on General	MCQ on Inheritance
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Inheritance MCQ

1. According to the following punnett square, the female genotype is _____.

2. Look at the following code. the method in line ________ will override the method in line ________.

3. Inheritance is an example of a(n) ____ relationship.

4. A derived class always ____ case or instance of the more general base class.

5. A class that represents the most general entity in an inheritance hierarchy is called a/an ____.

6. ________ is commonly used to extend a class, or to give it additional capabilities.

7. ____ is the ability to use the same expression to denote different operations.

8. In Multipath inheritance, in order to remove duplicate set of records in child class, we___________.

9. If base class has constructor with arguments, then it is ________________ for the derived class to have constructor and pass the arguments to base class constructor.

10. During a class inheritance in CPP, if the visibility mode or mode of derivation is not provided, then by default visibility mode is___________.

11. When a base class is privately inherited by the derived class, then_______________.

13. Class X, class Y and class Z are derived from class BASE. This is _____________ inheritance.

14. Can struct be used as Base class for inheritance ?

15. What is difference between protected and private access specifiers in inheritance?

16. Private members of the class are not inheritable.

17. In case of inheritance where both base and derived class are having constructors, when an object of derived class is created then___________.

18. If the derived class is struct, then default visibility mode is_______.

19. Can we pass parameters to base class constructor though derived class or derived class constructor?

20. The derivation of Child class from Base class is indicated by ____ symbol.

22. Reusability of the code can be achieved in CPP through:

2. Look at the following code. the method in line will override the method in line .