Question 1

A call to the base class's constructor is specified in the heading of the definition of a derived class constructor.

Accepted Answer

A) True 
 B)False

Question 2

In protected inheritance, public and protected members of the base class become the protected members of the derived 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) C) and D)

Question 4

Consider the following class definition: The class dClass is derived from the class bClass using the ____ type of inheritance.

Accepted Answer

A)   public
B)   private
C)   protected
D)   staticE) B) and C)
F) B) and D)

Question 5

To ____ a public member function of a base class in the derived class, the corresponding function in the derived class must have the same name, number, and types of parameters.

Accepted Answer

A)   redefine
B)   overload
C)   rename
D)   reuseE) C) and D)
F) None of the above A

Question 6

Which of the following is true about a derived class?

Accepted Answer

A)   A derived class can directly access any member variable of the base class.
B)   A derived class can redefine any public member function of the base class.
C)   A derived class can have at most one base class.
D)   A derived class can redefine any member function of the base class.E) A) and B)
F) C) and D)

Question 7

Consider the following class definitions: Which of the following dClass constructor definitions is valid in C++?

Accepted Answer

A)   dClass::dClass(double a, double b, double c) : bClass() {x= a;y = b;z = c;}
B)   dClass::dClass(double a, double c) {x = a;z = c;}
C)   dClass::dClass(double a, double b) : bClass() {x = a;y = b;}
D)   dClass::dClass(double a, double b, double c) : bClass(a, b) {z = c;}E) A) and B)
F) B) and C)

Question 8

The private members of a base class can be directly accessed by a derived class.

Accepted Answer

A) True 
 B)False

Question 9

If the derived class does not override a public member function of the base class, you may specify a call to that public member function by using the name of the function and the appropriate parameter list.

Accepted Answer

A) True 
 B)False

Question 10

If the corresponding functions in the base class and the derived class have the same name but different sets of parameters, then this function is ____ in the derived class.

Accepted Answer

A)   reused
B)   redefined
C)   overloaded
D)   overriddenE) A) and B)
F) B) and C)

Question 11

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 C)
F) A) and D)

Question 12

If inheritance is public, all protected members of the base class are ____________________ members of the derived class.

Accepted Answer

The answer of If inheritance is public, all protected members...

Question 13

Consider the following class definitions:  Which of the following statements correctly redefines the member function print of bClass?

Accepted Answer

A)   void dClass::print()  const{DClass:print() ;Cout }
B)   void dClass::print()  const{Cout }
C)   void bClass::print()  const{Cout }
D)   void dClass::print()  const{BClass::print() ;Cout }E) A) and C)
F) C) and D)

Question 14

Which of the following is a valid definition of the derived class bClass?

Accepted Answer

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

Question 15

The constructors of a derived class can (directly) initialize only the (public data) members inherited from the base class of the derived class.

Accepted Answer

A) True 
 B)False

Question 16

The constructor of a derived class cannot directly access the ____________________ member variables of the base class.

Accepted Answer

The answer of The constructor of a derived class cannot...

Question 17

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

Accepted Answer

A) True 
 B)False  False

Question 18

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

Accepted Answer

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

Question 19

C++ provides ____ functions as a means to implement polymorphism in an inheritance hierarchy, which allows the run-time selection of appropriate member functions.

Accepted Answer

A)   redefined
B)   overridden
C)   virtual
D)   overloadedE) None of the above
F) C) and D) C

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

A call to the base class's constructor is specified in the heading of the definition of a derived class constructor.

Correct AnswerverifiedShow Answer

In protected inheritance, public and protected members of the base class become the protected members of the derived class.

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

Consider the following class definition: The class dClass is derived from the class bClass using the ____ type of inheritance.

Correct AnswerverifiedShow Answer

To ____ a public member function of a base class in the derived class, the corresponding function in the derived class must have the same name, number, and types of parameters.

Correct AnswerverifiedA

Which of the following is true about a derived class?

Correct AnswerverifiedShow Answer

Consider the following class definitions: Which of the following dClass constructor definitions is valid in C++?

Correct AnswerverifiedShow Answer

The private members of a base class can be directly accessed by a derived class.

Correct AnswerverifiedShow Answer

If the derived class does not override a public member function of the base class, you may specify a call to that public member function by using the name of the function and the appropriate parameter list.

Correct AnswerverifiedShow Answer

If the corresponding functions in the base class and the derived class have the same name but different sets of parameters, then this function is ____ in the derived class.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If inheritance is public, all protected members of the base class are ____________________ members of the derived class.

Correct AnswerverifiedShow Answer

Consider the following class definitions: Which of the following statements correctly redefines the member function print of bClass?

Correct AnswerverifiedShow Answer

Which of the following is a valid definition of the derived class bClass?

Correct AnswerverifiedShow Answer

The constructors of a derived class can (directly) initialize only the (public data) members inherited from the base class of the derived class.

Correct AnswerverifiedShow Answer

The constructor of a derived class cannot directly access the ____________________ member variables of the base class.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedFalse

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

Correct AnswerverifiedShow Answer

C++ provides ____ functions as a means to implement polymorphism in an inheritance hierarchy, which allows the run-time selection of appropriate member functions.

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

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A

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False

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C

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