Encapsulation and abstraction differ as ____________
a) Hiding and hiding respectively
b) Binding and Hiding respectively
c) Hiding and Binding respectively
d) Can be used any way
Q.2.
Which feature of OOP is exhibited by the function overriding?
a) Polymorphism
b) Encapsulation
c) Abstraction
d) Inheritance
Q.3.
How to access the private member function of a class?
a) Using class address
b) Using object of class
c) Using object pointer
d) Using address of member function
Q.4.
Which keyword should be used to declare static variables?
a) const
b) common
c) static
d) stat
Q.5.
Which is correct syntax for declaring pointer to object?
a) *className objectName;
b) className* objectName;
c) className objectName();
d) className objectName;
Q.6.
Which class/set of classes can illustrate polymorphism in the following C++ code?
abstract class student
{
public : int marks;
calc_grade();
}
class topper:public student
{
public : calc_grade()
{
return
}
};
class average:public student
{
public : calc_grade()
{
return
}
};
class failed{ int marks; };
a) Only class student and topper together can show polymorphism
b) Only class student can show polymorphism
c) Class failed should also inherit class student for this code to work for polymorphism
d) All class student, topper and average together can show polymorphism
Q.7.
If data members are private, what can we do to access them from the class object?
a) Private data members can never be accessed from outside the class
b) Create public member functions to access those data members
c) Create private member functions to access those data members
d) Create protected member functions to access those data members
Q.8.
Which among the following is not a necessary condition for constructors?
a) Its name must be same as that of class
b) It must not have any return type
c) It must contain a definition body
d) It can contains arguments
Q.9.
Object being passed to a copy constructor ___________
a) Must not be mentioned in parameter list
b) Must be passed with integer type
c) Must be passed by value
d) Must be passed by reference
Q.10.
If in multiple inheritance, class C inherits class B, and Class B inherits class A. In which sequence are their destructors called if an object of class C was declared?
a) ~A() then ~B() then ~C()
b) ~C() then ~A() then ~B()
c) ~C() then ~B() then ~A()
d) ~B() then ~C() then ~A()
Q.11.
Instance of which type of class can’t be created?
a) Parent class
b) Abstract class
c) Anonymous class
d) Nested class
Q.12.
___________ underlines the feature of Polymorphism in a class.
a) Virtual Function
b) Inline function
c) Enclosing class
d) Nested class
Q.13.
Which feature in OOP is used to allocate additional functions to a predefined operator in any language?
a) Function Overloading
b) Function Overriding
c) Operator Overloading
d) Operator Overriding
Q.14.
Which feature can be implemented using encapsulation?
d) Abstraction
a) Polymorphism
b) Overloading
c) Inheritance
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