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

C Interview Questions

Questions Answers Views Company eMail

Switch (i) i=1; case 1 i++; case 2 ++i; break; case 3 --i; Output of i after executing the program

Mascot,

5 10227

char S; char S[6]= " HELLO"; printf("%s ",S[6]); output of the above program ? (0, ASCII 0, I,unpredictable)

Mascot,

7 14452

Unsigned char c; for ( c=0;c!=256;c++2) printf("%d",c); No. of times the loop is executed ?

Mascot, TCS,

8 20440

int i; i=2; i++; if(i=4) { printf(i=4); } else { printf(i=3); } output of the program ?

Mascot,

15 21080

write a C code to reverse a string using a recursive function, without swapping or using an extra memory.

Motorola, TCS, Wipro,

9 43122

write a C code To reverse a linked list

Motorola, Wipro,

2 15153

Difference between Class and Struct.

Ericsson, Motorola, Wipro,

13 40866

Tell about strtok & strstr functions

HCL, iFlex, Motorola,

2 19561

two progs are given. one starts counting frm 0 to MAX and the other stars frm MAX to 0. which one executes fast.

Verifone,

5 9153

int a=2,b=3,c=4; printf("a=%d,b=%d\n",a,b,c); what is the o/p?

Verifone,

6 22583

C program code int zap(int n) { if(n<=1)then zap=1; else zap=zap(n-3)+zap(n-1); } then the call zap(6) gives the values of zap [a] 8 [b] 9 [c] 6 [d] 12 [e] 15

TCS, Wipro,

6 24047

n=7623 { temp=n/10; result=temp*10+ result; n=n/10 }

Wipro,

7 13738

int zap(int n) { if(n<=1)then zap=1; else zap=zap(n-3)+zap(n-1); } then the call zap(6) gives the values of zap [a] 8 [b] 9 [c] 6 [d] 12 [e] 15

Wipro,

10 17649

The C language terminator is a.semicolon b.colon c.period d.exclamation mark

TCS,

6 15451

What is false about the following A compound statement is a.A set of simple statments b.Demarcated on either side by curly brackets c.Can be used in place of simple statement d.A C function is not a compound statement.

CCEM, TCS,

5 21986

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Un-Answered Questions { C }

The performance of an operation in several steps with each step using the output of the preceding step a) recursion b) search c) call by value d) call by reference

1223

What does it mean when the linker says that _end is undefined?

1093

Why we write conio h in c?

1029

What is a stream water?

1211

#include { printf("Hello"); } how compile time affects when we add additional header file .

1893

what is the role you expect in software industry?

2143

List some of the static data structures in C?

1198

How many types of operator or there in c?

1092

Explain how can I convert a number to a string?

1152

What is the benefit of using #define to declare a constant?

1090

the maximum length of a character constant can be a) 1 character b) 8 characters c) 256 chaacters d) 125 characters

2298

1. Write a function to display the sum of two numbers in the following ways: By using (i) pass by value (ii) pass by address a. function with argument and with return value b. function with argument and without return value c. without argument , with return value d. without argument , without return value Note: Use pass by address.

2811

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

1298

Is using exit() the same as using return?

1347

Is there a way to compare two structure variables?

1111

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