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

C++ General 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

1163

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

1264

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

1197

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Un-Answered Questions { C++ General }

What is ostream in c++?

1015

What is the precedence when there is a global variable and a local variable in the program with the same name?

1131

What is the type of 'this' pointer?

1020

How to implement is-a and has-a class relationships?

1034

Can you pass a vector to a function?

982

Arrange Doubly linked list in the ascending order of its integral value and replace integer 5 with 7?

4121

What is abstract class in c++?

1055

How can we access protected and private members of a class?

1120

Why was c++ made?

1108

What does new in c++ do?

1027

What are the advantages of using const reference arguments in a function?

1077

If I is an integer variable, which is faster ++i or i++?

1071

What are static variables?

1140

What is the object serialization?

1148

Describe delete operator?

1093

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