Objects and Classes

1.

Which of the following statements are correct for a static member function?

It can access only other static members of its class.
It can be called using the class name, instead of objects

A.	Only 1 is correct.
B.	Only 2 is correct.
C.	Both 1 and 2 are correct.
D.	Both 1 and 2 are incorrect.

Answer: Option C

Explanation:

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2.

Which of the following statements is correct about the program given below?

class Bix
{
public:
static void MyFunction();
};
int main()
{
void(*ptr)() = &Bix::MyFunction;
return 0;
}

A.	The program reports an error as pointer to member function cannot be defined outside the definition of class.
B.	The program reports an error as pointer to static member function cannot be defined.
C.	The program reports an error as pointer to member function cannot be defined without object.
D.	The program reports linker error.

Answer: Option D

Explanation:

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3.

Which of the following is the only technical difference between structures and classes in C++?

A.	Member function and data are by default protected in structures but private in classes.
B.	Member function and data are by default private in structures but public in classes.
C.	Member function and data are by default public in structures but private in classes.
D.	Member function and data are by default public in structures but protected in classes.

Answer: Option C

Explanation:

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4.

Which of the following means "The use of an object of one class in definition of another class"?

A.	Encapsulation
B.	Inheritance
C.	Composition
D.	Abstraction

Answer: Option C

Explanation:

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5.

Which of the following can be overloaded?

A.	Object
B.	Functions
C.	Operators
D.	Both B and C

Answer: Option D

Explanation:

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6.

What does a class hierarchy depict?

A.	It shows the relationships between the classes in the form of an organization chart.
B.	It describes "has a" relationships.
C.	It describes "kind of" relationships.
D.	It shows the same relationship as a family tree.

Answer: Option C

Explanation:

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7.

Which of the following statements is correct?

A.	Data items in a class must be private.
B.	Both data and functions can be either private or public.
C.	Member functions of a class must be private.
D.	Constructor of a class cannot be private.

Answer: Option B

Explanation:

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8.

Which of the following statements is correct when a class is inherited privately?

A.	Public members of the base class become protected members of derived class.
B.	Public members of the base class become private members of derived class.
C.	Private members of the base class become private members of derived class.
D.	Public members of the base class become public members of derived class.

Answer: Option B

Explanation:

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