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

C Interview Questions

Questions Answers Views Company eMail

any limit on the number of functions that might be present in a C program a) max 35 functions b) max 50 functions c) no limit d) none of the above

1057

C program execution always begins with a) #include b) comment (/*-------*/) c) main() d) declaration instructions

1067

any function have arguments one or more OR not . it is compulsary a) any function compulsary have one or more arguments b) any function did not have arguments. It is not compulsary c) it is optional it is not compulsary d) none of the above

1129

a function gets called when the function name is followed by a a) semicolon (;) b) period(.) c) ! d) none of the above

1399

printf(), scanf() these are a) library functions b) userdefined functions c) system functions d) they are not functions

1168

why use functions a) writing functions avoids rewriting the same code over and over b) using functions it becomes easier to write programs and keep track of what they are doing c) a & b d) none of the above

1164

why use "return" statement a) on executing the return statement it immediately transfers the control back to the calling program b) it returns the value present in the parentheses return, to the calling program c) a & b d) none of the above

1096

any restrictions have on the number of 'return' statements that may be present in a function. a) no restriction b) only 2 return statements c) only 1 return statements d) none of the above

1145

what are the advanced features of functions a) function declaration and prototypes b) calling functions by value or by reference c) recursion d) all the above

1131

any "C" function by default returns an a) int value b) float value c) char value d) a & b

1090

in case any function return float value we must declare a) the function must be declared as 'float' in main() as well b) the function automatically returned float values c) function before declared 'float' keyword d) all the above

1041

we called a function and passed something do it we have always passed the "values" of variables to the called function. such functions calles are called a) calls by reference b) calls by value c) calls by zero d) none of the above

1173

int i=3; this declaration tells the C compiler to a) reserve space in memory to hold the integer value b) associate the name i with this memory location c) store the value 3 at this location d) all the above

1310

"%u" unsigned integer print the a) address of variable b) value of variable c) name of a variable d) none of the above

1031

why arguments can generally be passed to functions a) sending the values of the arguments b) sending the addresses of the arguments c) a & b d) none of the above

1136

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Un-Answered Questions { C }

write a c program to print the next of a particular no without using the arithmetic operator or looping statements?

3985

What are reserved words?

1120

What is the use of linkage in c language?

1068

What is meant by preprocessor in c?

1021

What is wrong with this program statement?

1048

What does the message "automatic aggregate intialization is an ansi feature" mean?

1196

#include int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20

1728

How do you list a file’s date and time?

1076

WRITE A PROGRAM TO MERGE TWO SORTED ARRAY USING MERGE SORT TECHNIQUE..

2094

What are terms in math?

1061

Explain indirection?

1149

What are keywords c?

1039

Why dont c comments nest?

1058

Difference between goto, long jmp() and setjmp()?

1185

The difference between printf and fprintf is ?

1298

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