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

1042

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

1038

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

1109

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

1027

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

983

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

937

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

981

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

1020

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

1016

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

1025

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

1030

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

1056

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

1173

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

1204

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

1151

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Un-Answered Questions { C++ General }

What is a null object in c++?

1165

If we want that any wildcard characters in the command line arguments should be appropriately expanded, are we required to make any special provision? If yes, which?

1458

Write a Program for read a line from file from location N1 to N2 using command line arguments. Eg:exe 10 20 a.c

1238

Write a program for Divide a number with 2 and Print the output ( NOTE: Check for divide by zero error).

1074

What is :: operator in c++?

1000

What is the two main roles of operating system?

986

How do I get good at c++ programming?

1104

give me an example for testing a program showing the test path .show how the test is important and complex.

2876

What are the two main components of c++?

1070

What is protected inheritance?

1012

What is singleton pattern in c++?

934

What are the advantage of using register variables?

1127

What are pointer-to-members? Explain.

1080

Is oops and c++ same?

1005

What are c++ storage classes?

1058

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