Cognizant Polymorphism Quiz

Question 1

Time: 00:00:00
A virtual function that has no definition within the base class is called?

Pure virtual function

Pure virtual function

Pure static function

Pure static function

Pure Const function

Pure Const function

Virtual Function

Virtual Function

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Question 2

Time: 00:00:00
Syntax for Pure Virtual Function is?

virtual void show()==0

virtual void show()==0

void virtual show()==0

void virtual show()==0

virtual void show()=0

virtual void show()=0

void virtual show()=0

void virtual show()=0

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Question 3

Time: 00:00:00
C++ supports run time polymorphism with the help of virtual functions, which is called …………….. binding?

dynamic

dynamic

run time

run time

early binding

early binding

static

static

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Question 4

Time: 00:00:00
Find the wrong statement/s about Abstract Class?

We can’t create its objects.

We can’t create its objects.

We can’t create pointers to an abstract class.

We can’t create pointers to an abstract class.

It contains at least one pure virtual function.

It contains at least one pure virtual function.

We can create references to an abstract class.

We can create references to an abstract class.

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Question 5

Time: 00:00:00
Which of the followings are true about Virtual functions?

They must be non-static member function of the class

They must be non-static member function of the class

They cannot be friends

They cannot be friends

Constructor Functions cannot be virtual

Constructor Functions cannot be virtual

All of these

All of these

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Question 6

Time: 00:00:00
Which of the following correctly describes overloading of functions?

Virtual polymorphism

Virtual polymorphism

Ad-hoc polymorphism

Ad-hoc polymorphism

Transient polymorphism

Transient polymorphism

Pseudo polymorphism

Pseudo polymorphism

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Question 7

Time: 00:00:00
Which of the following operator is overloaded for object cout?

+

+

>>

>>

<<

<<

=

=

()

()

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Question 8

Time: 00:00:00
Which of the following operators cannot be overloaded?
A

B

C

*

*

->

->

[]

[]

?:

?:

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Question 9

Time: 00:00:00
The operator << when overloaded in a class

must be a member function

must be a member function

must be a non member function

must be a non member function

can be both (A) & (B) above

can be both (A) & (B) above

cannot be overloaded

cannot be overloaded

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