Question 1

The new classes that we create from existing classes are called ____ classes.

Accepted Answer

A)   sibling
B)   base
C)   derived
D)   parentE) A) and B)
F) B) and D)

Question 2

A derived class cannot directly access public members of a base class.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following class definitions makes the public members of the class aClass become the public members of the class bClass?

Accepted Answer

A)   class aClass: public bClass{//) ..};
B)   class bClass: public aClass{//) ..};
C)   class bClass: aClass{//) ..};
D)   class aClass: bClass{//) ..};E) All of the above
F) B) and D)

Question 4

In object-oriented design,we debug ____________________; in structured programming,we debug functions.

Accepted Answer

The answer of In object-oriented design,we debug ____________________; in structured...

Question 5

Which of the following statements about inheritance is true if memberAccessSpecifier is protected?

Accepted Answer

A)   The private members of the base class become protected members of the derived class.
B)   The derived class can directly access any member of the base class.
C)   The public members of the base class become protected members of the derived class.
D)   The protected members of the base class become private members of the derived class.E) B) and D)
F) B) and C)

Question 6

____ is a "has-a" relationship.

Accepted Answer

A)   Inheritance
B)   Encapsulation
C)   Composition
D)   PolymorphismE) A) and B)
F) None of the above

Question 7

In multiple inheritance,the derived class has more than one base class.

Accepted Answer

A) True 
 B)False

Question 8

Consider the following class definitions: class bClass
{
Public:
Void setX(int a) ;
//Postcondition: x = a;
Void print() const;
Private:
Int x;
};
Class dClass: public bClass
{
Public:
Void setXY(int a,int b) ;
//Postcondition: x = a; y = b;
Void print() const;
Private:
Int y;
};
Which of the following correctly sets the values of x and y?

Accepted Answer

A)   void dClass::setXY(int a, int b) {BClass::setX(a) ;Y = b;}
B)   void dClass::setXY(int a, int b) {X = a;Y = b;}
C)   void dClass::setXY(int a, int b) {X = bClass::setX(a) ;Y = bClass::setY(b) ;}
D)   void dClass::setXY(int a, int b) {X = bClass.setX(a) ;B = y;}E) B) and C)
F) None of the above

Question 9

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

Accepted Answer

A)   is-a
B)   has-a
C)   handshaking
D)   had-aE) C) and D)
F) All of the above

Question 10

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

Accepted Answer

A)   Inheritance
B)   Encapsulation
C)   Polymorphism
D)   CompositionE) B) and D)
F) A) and B)

Question 11

If inheritance is private,all members of the base class,including private members,become private members of the derived class.

Accepted Answer

A) True 
 B)False

Question 12

OOP implements ____.

Accepted Answer

A)   UML
B)   IPE
C)   EIP
D)   OODE) A) and C)
F) C) and D)

Question 13

Which of the following is true about inheritance?

Accepted Answer

A)   All public member functions of the base class become the public member functions of the derived class.
B)   All public member variables of the base class become the public member variables of the derived class.
C)   All public members of the base class become the public members of the derived class.
D)   The public member variables of the base class become the public or private member variables of the derived class.E) A) and B)
F) A) and C)

Question 14

The term ____________________ is used to describe the ability to create new objects from existing objects.

Accepted Answer

The answer of The term ____________________ is used to describe...

Question 15

Suppose that bClass is a class.Which of the following statements correctly derives the class dClass from bClass?

Accepted Answer

A)   class dClass:: public bClass{//classMembersList};
B)   class dClass: private bClass{//classMembersList};
C)   class dClass:: protected bClass{//classMembersList};
D)   class bClass: public dClass{//classMembersList};E) A) and D)
F) A) and C)

Question 16

In the case of composition,the ____________________ name is used to invoke the constructor.

Accepted Answer

The answer of In the case of composition,the ____________________ name...

Question 17

Classes can create new classes from existing classes.This important feature ____.

Accepted Answer

A)   encourages code reuse
B)   aids the separation of data and operations
C)   provides public access to the internal state of an object
D)   results in more software complexityE) All of the above
F) B) and D)

Question 18

A derived class can directly access the protected members of the base class.

Accepted Answer

A) True 
 B)False

Question 19

In ____________________ (aggregation),one or more members of a class are objects of another class type.

Accepted Answer

The answer of In ____________________ (aggregation),one or more members of...

Question 20

C++ provides ____________________ functions as a means to implement polymorphism in an inheritance hierarchy.

Accepted Answer

The answer of C++ provides ____________________ functions as a means...

Exam 11: Inheritance and Composition

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

Correct Answer
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C++ provides ____________________ functions as a means to implement polymorphism in an inheritance hierarchy.

Correct Answer
verified

____ is a "has-a" relationship.

Correct Answer
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In object-oriented design,we debug ____________________; in structured programming,we debug functions.

Correct Answer
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Which of the following statements about inheritance is true if memberAccessSpecifier is protected?

Correct Answer
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Classes can create new classes from existing classes.This important feature ____.

Correct Answer
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The new classes that we create from existing classes are called ____ classes.

Correct Answer
verified

In the case of composition,the ____________________ name is used to invoke the constructor.

Correct Answer
verified

Which of the following is true about inheritance?

Correct Answer
verified

In multiple inheritance,the derived class has more than one base class.

Correct Answer
verified

The term ____________________ is used to describe the ability to create new objects from existing objects.

Correct Answer
verified

A derived class cannot directly access public members of a base class.

Correct Answer
verified

A derived class can directly access the protected members of the base class.

Correct Answer
verified

In ____________________ (aggregation),one or more members of a class are objects of another class type.

Correct Answer
verified

OOP implements ____.

Correct Answer
verified

Which of the following class definitions makes the public members of the class aClass become the public members of the class bClass?

Correct Answer
verified

If inheritance is private,all members of the base class,including private members,become private members of the derived class.

Correct Answer
verified

Suppose that bClass is a class.Which of the following statements correctly derives the class dClass from bClass?

Correct Answer
verified

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

Correct Answer
verified

Exam 11: Inheritance and Composition

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

Correct AnswerverifiedShow Answer

C++ provides ____________________ functions as a means to implement polymorphism in an inheritance hierarchy.

Correct AnswerverifiedShow Answer

____ is a "has-a" relationship.

Correct AnswerverifiedShow Answer

In object-oriented design,we debug ____________________; in structured programming,we debug functions.

Correct AnswerverifiedShow Answer

Which of the following statements about inheritance is true if memberAccessSpecifier is protected?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Classes can create new classes from existing classes.This important feature ____.

Correct AnswerverifiedShow Answer

The new classes that we create from existing classes are called ____ classes.

Correct AnswerverifiedShow Answer

In the case of composition,the ____________________ name is used to invoke the constructor.

Correct AnswerverifiedShow Answer

Which of the following is true about inheritance?

Correct AnswerverifiedShow Answer

In multiple inheritance,the derived class has more than one base class.

Correct AnswerverifiedShow Answer

The term ____________________ is used to describe the ability to create new objects from existing objects.

Correct AnswerverifiedShow Answer

A derived class cannot directly access public members of a base class.

Correct AnswerverifiedShow Answer

A derived class can directly access the protected members of the base class.

Correct AnswerverifiedShow Answer

In ____________________ (aggregation),one or more members of a class are objects of another class type.

Correct AnswerverifiedShow Answer

OOP implements ____.

Correct AnswerverifiedShow Answer

Which of the following class definitions makes the public members of the class aClass become the public members of the class bClass?

Correct AnswerverifiedShow Answer

If inheritance is private,all members of the base class,including private members,become private members of the derived class.

Correct AnswerverifiedShow Answer

Suppose that bClass is a class.Which of the following statements correctly derives the class dClass from bClass?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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