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TCS NQT OOPS Quiz- 1

Question 1

Time: 00:00:00

Which of the following operator is overloaded for object cout ?

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Answer :: (B)

EXPLANATION :

The << operator is overloaded for the cout object.

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Question 2

Time: 00:00:00

What is the function used to describe the situation, when a function in base class is redefined in inherited class ?

Inheritance

Overriding

Overloading

Encapsulation

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Answer :: (B)

EXPLANATION :

Method Overriding is the function which is used to describe the situation,when a function in base class is redefined in the inherited class.

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Question 3

Time: 00:00:00

How can a call to an overloaded function be ambiguous ?

By misspelling the name

There might be two or more functions with the same name

There might be two or more functions with equally appropriate signatures

None of these

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Answer :: (B)

EXPLANATION :

The call to an overloaded function can be ambiguous if the two or more functions have the same name and same function signature.

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Question 4

Time: 00:00:00

A complete binary tree with the property that the value at each node is at least as large as the values at its children is known as

Binary search tree

AVL tree

Completely balanced tree

Heap

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A max-heap is a complete binary tree in which the value in each internal node is greater than or equal to the values in the children of that node.

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Question 5

Time: 00:00:00

Which of the following correctly describes overloading of functions?

Virtual polymorphism

Transient polymorphism

Ad-hoc polymorphism

Pseudo polymorphism

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Ad hoc polymorphism is a kind of polymorphism in which polymorphic functions can be applied to arguments of different types, because a polymorphic function can denote a number of distinct and potentially heterogeneous implementations depending on the type of argument(s) to which it is applied.

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Question 6

Time: 00:00:00

Which of the following is not a valid type of polymorphism ?

adhoc polymorphism

imperative polymorphism

predicative polymorphism

inclusion polymorphism

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Answer :: (B)

EXPLANATION :

Imperative polymorphism is not an valid type of polymorphism.

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Option B

option b

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Question 7

Time: 00:00:00

Which of the following operators cannot be overloaded ?

[]

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Answer :: (D)

EXPLANATION :

The "?:" (Ternary operator) cannot be overloaded.

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option c

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Question 8

Time: 00:00:00

Which of the following is a mechanism of static polymorphism ?

Operator overloading

Function overloading

Templates

All of the above

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Answer :: (D)

EXPLANATION :

Function Overloading,Operator Overloading,Templates all are the examples of static polymorphism.

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Question 9

Time: 00:00:00

Which of the following keyword is used to overload an operator ?

Overload

Operator

Friend

Override

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Answer :: (B)

EXPLANATION :

Operator keyword is used to overload an operator.

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Question 10

Time: 00:00:00

The operator << when overloaded in a class ?

must be a member function

must be a non member function

can be both (A) & (B) above

cannot be overloaded

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Answer :(C)

EXPLANATION :

The << operator overloaded in a class must be a both member and non-member function.

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