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

1126

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

1367

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

1085

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

1098

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

1006

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

1109

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

1084

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

981

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

1064

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

1163

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

1013

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

1040

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

1765

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

1117

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

998

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Un-Answered Questions { C++ General }

Write a program to add three numbers in C++ utilizing classes.

1064

Which software is best for programming?

1102

Explain the isa and hasa class relationships. How would you implement each?

1078

What is a volatile variable in c++?

1375

What flag means?

902

What is main function in c++ with example?

1158

Difference between pointer to constant vs. Pointer constant

1066

What are the benefits of c++?

991

How do you instruct your compiler to print the contents of the intermediate file showing the effects of the preprocessor?

1096

Can I uninstall microsoft c++ redistributable?

1057

Explain the term memory alignment?

1180

What is the difference between reference and pointer?

1104

What is array in c++ pdf?

1107

Is c++ map a hash table?

980

What is type of 'this' pointer?

1016

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