Question 1

____ is the ability to combine data, and operations on that data, in a single unit.

Accepted Answer

A)   Inheritance
B)   Encapsulation
C)   Polymorphism
D)   CompositionE) None of the above
F) B) and C)

Question 2

____ 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) None of the above

Question 3

The preprocessor directive ____________________ is used to prevent multiple inclusions of a header file in a program.

Accepted Answer

The answer of The preprocessor directive ____________________ is used to...

Question 4

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) None of the above
F) A) and B)

Question 5

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) None of the above
F) B) and C)

Question 6

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

Accepted Answer

A)   is-a
B)   has-a
C)   handshaking
D)   had-aE) B) and C)
F) C) and D)

Question 7

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 8

Existing classes, from which you create new classes, are called ____ classes.

Accepted Answer

A)   child
B)   base
C)   sibling
D)   derivedE) A) and B)
F) C) and D)

Question 9

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...

Question 10

What is the output of the following program?

Accepted Answer

A)   2 32 3
B)   2 33 5 8
C)   3 5 83 5 8
D)   5 83 5 8E) A) and B)
F) All of the above

Question 11

In OOD, a program is a collection of interacting ____________________; in structured programming, a program is a collection of interacting functions.

Accepted Answer

The answer of In OOD, a program is a collection...

Question 12

The ____ members of an object form its internal state.

Accepted Answer

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

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

The ____ members of an object form its external state.

Accepted Answer

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

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) C) and D)
F) A) and B)

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

____ is a "has-a" relationship.

Accepted Answer

A)   Inheritance
B)   Encapsulation
C)   Composition
D)   PolymorphismE) A) and B)
F) A) and C)

Question 18

The class io is the base class of the C++ stream classes istream and ostream.

Accepted Answer

A) True 
 B)False

Question 19

OOP implements ____.

Accepted Answer

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

Question 20

If the derived class classD overrides a public member function functionName of the base class classB, then to specify a call to that public member function of the base class, you use the statement ____.

Accepted Answer

A)   classD::functionName() ;
B)   classB::functionName() ;
C)   classD.functionName() ;
D)   classB.functionName() ;E) C) and D)
F) A) and C)

Exam 11: Inheritance and Composition

If the derived class classD overrides a public member function functionName of the base class classB, then to specify a call to that public member function of the base class, you use the statement ____.

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

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

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

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OOP implements ____.

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

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The preprocessor directive ____________________ is used to prevent multiple inclusions of a header file in a program.

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____ is the ability to combine data, and operations on that data, in a single unit.

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

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

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The ____ members of an object form its external state.

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____ is a "has-a" relationship.

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In OOD, a program is a collection of interacting ____________________; in structured programming, a program is a collection of interacting functions.

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

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Which of the following is true about inheritance?

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The ____ members of an object form its internal state.

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The class io is the base class of the C++ stream classes istream and ostream.

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What is the output of the following program?

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

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Existing classes, from which you create new classes, are called ____ classes.

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