Deck 2: Object-Oriented Design OOD and C++

Question 1

The base class inherits all its properties from the derived class.

Answer 1

False

Question 2

In single inheritance, the derived class is derived from a single base class.

Answer 2

True

Question 3

Private members of a base class can be accessed by a derived class.

Answer 3

False

Question 4

The derived class can redefine public member functions of a base class.

Question 5

Overriding a member function is the same as redefining it.

Question 6

Redefining a member function is the same as overloading the member function.

Question 7

A class cannot have a constructor with default parameters.

Question 8

A derived class cannot have a constructor with default parameters.

Question 9

Header files of new classes contain commands that tell the computer where to look for definitions of the base class.

Question 10

In C++ the user can create new operators.

Question 11

Default arguments can be used with an overloaded operator.

Question 12

When overloading an operator, the meaning of how an operator works with built-in types remains the same.

Question 13

A friend function is a member function of a class but only has access to the class's public data members.

Question 14

The function that overloads any of the operators (), [], ->, or = for a class must be declared as a member of the class.

Question 15

For efficiency purposes, wherever possible, you should overload operators as nonmember functions.

Question 16

By using templates, you can write a single code segment for a set of related functions.

Question 17

Just as variables are parameters to functions, data types are parameters to templates.

Question 18

In single inheritance, the derived class is derived from ____base class(es).

A) one
B) two
C) three or more
D) virtual

Question 19

If there are three classes, shape, circle, and square, what is the most likely relationship among them?

A) The square class is a base class, and shape and circle are derived classes of square.
B) The shape class is a base class, and circle and square are derived classes of shape.
C) The shape, circle, and square classes are all sibling classes.
D) These three classes cannot be related.

Question 20

If class dog has a derived class retriever, which of the following is true?

A) In the case of single inheritance, dog can have no other derived classes.
B) In the case of single inheritance, retriever is derived from no other class except dog.
C) The relationship between these classes implies that dog "is a" retriever.
D) The relationship between these classes implies that retriever "has-a" dog.

Question 21

We need to ensure that the private member variables that are inherited from the base class are initialized when a ____ of the derived class executes.

A) destructor
B) constructor
C) copy constructor
D) friend function

Question 22

When you declare a derived class object, this object inherits the members of the base class, but the derived class object cannot directly access the ____.

A) private data members of the base class
B) data members in its own class
C) base class constructors
D) public data members of the base class

Question 23

A(n) ____ typically serves to initialize the member variables of a derived class.

A) inheritor
B) initiator
C) deconstructor
D) constructor

Question 24

A call to the base class constructor is specified in the ____ of a derived class constructor.

A) body of the definition
B) body of the constructor
C) heading of the definition
D) heading of the constructor

Question 25

If a class contains the default constructor and no values are specified when the object is declared, the ____ executes and initializes the object.

A) default destructor
B) first destructor in the program listing
C) last constructor in the program listing
D) default constructor

Question 26

To define new classes, you create new ____ files.

A) header
B) friend
C) prototype
D) placeholder

Question 27

The definitions of member functions can be placed in a separate file whose extension is ____.

A) .cxx
B) .c
C) .cpp
D) .cc

Question 28

To include a system-provided header file, such as iostream, in a user program, you enclose the header file between ____.

A) curly brackets
B) angular brackets
C) asterisks
D) square brackets

Question 29

To include a header file in a program, you use the preprocessor command ____.

A) pragma
B) fetch
C) pull
D) include

Question 30

For a base class to give access to a member to its derived class and still prevent its direct access outside the class, you must declare that member under the member access specifier ____.

A) private
B) protected
C) public
D) shared

Question 31

In ____, one or more members of a class are objects of another class type.

A) inheritance
B) redefinition
C) composition
D) encapsulation

Question 32

Composition is a(n) "____" relationship.

A) is a
B) has a
C) was a
D) had a

Question 33

The arguments to the constructor of a member object are specified in the ____ part of the definition of the constructor of the class.

A) body
B) pragma
C) scope
D) heading

Question 34

By using templates, you can write a single code segment for a set of related functions, called a ____.

A) function template
B) function type
C) class set
D) class template

Question 35

Passing parameters to a function has an effect at ____ time.

A) compile
B) link
C) run
D) build