QUESTION 6

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

	a.	sibling
	b.	parent
	c.	derived
	d.	base

1 points

QUESTION 7

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

	a.	results in more software complexity
	b.	provides public access to the internal state of an object
	c.	aids the separation of data and operations
	d.	encourages code reuse

1 points

QUESTION 8

Which of the following is true about inheritance?

	a.	All public member functions of the base class become the public member functions of the derived class.
	b.	All public members of the base class become the public members of the derived class.
	c.	The public member variables of the base class become the public or private member variables of the derived class.
	d.	All public member variables of the base class become the public member variables of the derived class.

1 points

QUESTION 9

The ____ members of an object form its external state.

	a.	protected
	b.	private
	c.	static
	d.	public

1 points

QUESTION 10

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

	a.	handshaking
	b.	is-a
	c.	has-a
	d.	had-a

1 points

QUESTION 11

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

	a.	base
	b.	derived
	c.	child
	d.	sibling

1 points

QUESTION 12

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?

	a.	void dClass::setXY(int a, int b) { x = bClass.setX(a); b = y; }
	b.	void dClass::setXY(int a, int b) { x = bClass::setX(a); y = bClass::setY(b); }
	c.	void dClass::setXY(int a, int b) { x = a; y = b; }
	d.	void dClass::setXY(int a, int b) { bClass::setX(a); y = b; }

1 points

QUESTION 13

____ is a has-a relationship.

	a.	Inheritance
	b.	Polymorphism
	c.	Encapsulation
	d.	Composition

1 points

QUESTION 14

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.

	a.	redefined
	b.	reused
	c.	overridden
	d.	overloaded

1 points

QUESTION 15

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

	a.	class bClass::aClass { //... }
	b.	class bClass: public aClass { //... };
	c.	class aClass::bClass { //... };
	d.	class aClass: public bClass { //... };

1 points

QUESTION 16

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.

	a.	rename
	b.	reuse
	c.	redefine
	d.	overload

1 points

QUESTION 17

OOP implements ____.

	a.	IPE
	b.	EIP
	c.	UML
	d.	OOD

1 points

QUESTION 18

The ____ members of an object form its internal state.

	a.	public
	b.	protected
	c.	private
	d.	static

1 points

QUESTION 19

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

	a.	The protected members of the base class become private 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 private members of the base class become protected members of the derived class.

1 points

QUESTION 20

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

	a.	overloaded
	b.	redefined
	c.	virtual
	d.	overridden