C++ Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

Evaulate: 22%5 a) 2 b) 4 c) 0

1095

What data structure is fastest, on average, for retrieving data: a) Binary Tree b) Hash Table c) Stack

1083

What function initalizes variables in a class: a) Destructor b) Constitutor c) Constructor

1162

Is C++ case sensitive a) False b) Depends on implementation c) True

1084

What is the equivalent of Pascal's Real a) unsigned int b) float c) char

1021

What doescout<<(0==0) print out a) 0 b) 1 c) Compiler error: Lvalue required

970

If all is successful, what should main return a) 0 b) 1 c) void

1016

C is to C++ as 1 is to a) What the heck b) 2 c) 10

1057

Which sort is best for the set: 1 2 3 5 4 a) Quick Sort b) Bubble Sort c) Merge Sort

1059

What does the following code do: int c=0; cout< a) Undefined *Updated* b) 01 c) 00

1072

What is the maximum value of a unsigned char a) 255 b) 256 c) 128

1073

In int main(int argc, char *argv[]) what is argv[0] a) The first argument passed into the program b) The program name c) You can't define main like that

1096

In which header file does one find isalpha() a) conio.h b) stdio.h c) ctype.h

1211

Which is not a valid keyword a) public b) protected c) guarded

1263

What is the correct syntax for inheritance a) class aclass : public superclass b) class aclass inherit superclass c) class aclass <-superclass

1194

Un-Answered Questions { C++ }

What are oops functions?

1020

Would you rather wait for quicksort, linear search, or bubble sort on a 200000 element array? (Or go to lunch...) a) Quicksort b) Linear Search c) Bubble Sort

1049

Can we overload operator in c++?

1042

What is oops concept with example?

1022

what are the iterator and generic algorithms.

2170

What is c++ prototype?

1214

What is difference between n and endl in c++?

1096

What is pointer to array in c++?

1165

What do you mean by translation unit?

1097

Why do we need templates?

991

Describe the My Computer and My Documents folders; identify the elements that are present in every Window.

2530

What are the benefits of pointers?

1038

is there any choice in opting subjects like 4 out of 7

2186

Why do we use using namespace std in c++?

1083

What are destructors?

1012

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