Ch.15 Inheritance, Polymorphism, and Virtual Functions

Question 1

A derived class inherits the ________ of its base class.

Answer 1

Member

Question 2

When both a base class and a derived class have constructors, the base class’s instructor is called _________ (first, last).

Answer 2

First

Question 3

When both a base class and a derived class have destructors, the base class instructor is called _________ (first, last).

Answer 3

Last

Question 4

An overridden base class function may be called by a function in a derived class by using the ________ operator.

Answer 4

scope resolution : :

Question 5

When a derived class redefines a function in a base class, which version of the function do objects that are defined of the base class call? ________

Answer 5

base class

Question 6

A(n) _______ member function in a base class expects to be overwritten in a derived class.

Answer 6

Virtual

Question 7

________ binding is when the compiler binds member function calls at compile time.

Answer 7

static

Question 8

_______ binding is when a function call is bound at run time.

Answer 8

Dynamic

Question 9

________ is when member functions in a class hierarchy behave differently, depending on which object performs the call.

Answer 9

Polymorphism

Question 10

When a pointer to a base class is made to point to a derived class, the pointer ignores any ________ the derived class performs, unless the function is ________.

Answer 10

Overriding, Virtual

Question 11

A ________ class cannot be instantiated.

Answer 11

Abstract Base

Question 12

A _____ function has no body, or definition, in the class in which it is declared.

Answer 12

Pure Virtual

Question 13

A ________ of inheritance is where one class is derived from a second class, which in turn is derived from a third class.

Answer 13

Chain

Question 14

_______ is where a derived class has two or more base classes.

Answer 14

Multiple Inheritance

Question 15

In multiple inheritance, the derived class should always _______ a function that has the same name in more than one base class.

Answer 15

Override

Question 16

The base class’s access specification affects the way base class member functions may access base class member variables. T/F

Answer 16

False

Question 17

The base class’s access specification affects the way the derived class inherits members of the base class. T/F

Answer 17

True

Question 18

Private members of a private base class become inaccessible to the derived class. T/F

Answer 18

True

Question 19

Public members of a private base class become private members of the derived class. T/F

Answer 19

True

Question 20

Protected members of a private base class become public members of the derived class. T/F

Answer 20

False

Question 21

Public members of a protected base class become private members of the derived class. T/F

Answer 21

False

Question 22

Private members of a protected base class become inaccessible to the derived class. T/F

Answer 22

True

Question 23

Protected members of a public base class become public members of the derived class. T/F

Answer 23

False

Question 24

The base class constructor is called after the derived class constructor. T/F

Answer 24

False

Question 25

The base class destructor is called after the derived class destructor. T/F

Answer 25

True

Question 26

It isn’t possible for a base class to have more than one constructor. T/F

Answer 26

False

Question 27

Arguments are passed to the base class constructor by the derived class constructor. T/F

Answer 27

True

Question 28

A member function of a derived class may not have the same name as a member function of the base class. T/F

Answer 28

False

Question 29

Pointers to a base class may be assigned the address of a derived class object. T/F

Answer 29

True

Question 30

A base class may not be derived from another class. T/F

Answer 30

False