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

C++ General Interview Questions

Questions Answers Views Company eMail

What does the following do: for(;;) ; a) Illegal b) Loops forever c) Ignored by compiler...not illegal

1171

Of the numbers 12 23 9 28 which would be at the top of a properly implemented maxheap a) 28 b) 9 c) Any of them could be

1416

What are pointers, when declared, intialized to a) NULL b) Newly allocated memory c) Nothing. Its random

1125

What is the last index number in an array of 100 characters a) 100 b) 99 c) 101

1148

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

1044

What do nonglobal variables default to a) auto b) register c) static

1150

Which header file allows file i/o with streams a) fileio.h b) iostream.h c) fstream.h

1130

What is the outcome of cout< a) 16 b) 17 c) 16.5

1015

What will strcmp("Astring", "Astring"); return a) A positive value b) A negative value c) Zero

1096

Evaluate !(1&&1||1&&0) a) Error b) False c) True

1204

What header file is needed for exit(); a) stdlib.h b) conio.h c) dos.h

1049

Will a recursive function without an end condition every quit, in practice a) Compiler-Specific (Some can convert to an infinite loop) b) No c) Yes

1077

which of the following is not an secondary constant a) array b) real c) union

1799

an operation between an integer and real always yeilds a) integer result b) real result c) float result

1153

which operator is used for performing an exponential operation a) > b) ^ c) none

1059

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Un-Answered Questions { C++ General }

What is atoi in c++?

1072

What is else if syntax?

1162

What is the need of a destructor?

1136

What is the best free c++ compiler for windows?

1108

Which bit wise operator is suitable for putting on a particular bit in a number?

1200

Can you Mention some Application of C/C++?

1073

What are separators in c++?

1087

Write bites in Turbo c++ Header ("Include") Files.

1263

Differentiate between realloc() and free().

1045

When does the c++ compiler create temporary variables?

1040

What do you mean by inheritance in c++?

1096

How can virtual functions in c++ be implemented?

1125

What is an iterator?

1191

What is pair in c++?

1063

Can you please explain the difference between static and dynamic binding of functions?

1031

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