Interview Questions

1. What will be the output of following program? #include<stdio.h> int main() { int x , a , b , c; a = 9; b = 12; c = 3; x = a - b/3 + c*2 - 1; printf("%d",x); }

Options:

a. 11

b. 10

c. 7

d. 8

Reveal Answer

2. What is the output of the following program? #include<stdio.h> int main() { int y=6; printf("%d",++y); }

Options:

a. 6

b. 7

c. 8

d. 9

Reveal Answer

3. What is the output of the following program? #include<stdio.h> int main() { int y=6; printf("y=%d",--y); }

Options:

a. 5

b. 7

c. 2

d. 4

Reveal Answer

4. What is output of the following program? #include<stdio.h> int main() { int i, j = 4; i = j++; printf("i = %d, j = %d", i , j); }

Options:

a. i = 4, j = 4

b. i = 5, j = 5

c. i = 4, j = 5

d. i = 5, j = 4

Reveal Answer

5. What is the equivalent expression assignment operator for the x=x+5;

Options:

a. x+=5;

b. x=+5;

c. x++;

d. None of above

Reveal Answer

6. Which of the following are bitwise operators?

Options:

a. &

b. &&

c. <<

d. ||

e. ~

Reveal Answer

7. What is the output of the following program? #include<stdio.h> int main() { int x=3 , y; y=(x > 2) ? (2 * x + 5) : (1.5 * x + 3); printf("%d", y); }

Options:

a. 7.5

b. 11

c. 3

d. 9

Reveal Answer

8. What is the output for the following program? #include<stdio.h> int main() { int x=4; printf("%d",x++++xx--); }

Options:

a. 144

b. 125

c. 137

d. 126

Reveal Answer

9. What is the output of the Following program? #include<stdio.h> main() { float a = 1; float b = 1; printf("%d",sizeof(a+b)); }

Options:

a. 2

b. 4

c. 8

d. 16

Reveal Answer

10. What is the output of the following program? #include<stdio.h> main() { printf("%d %d %d ",sizeof('7'), sizeof(7), sizeof(7.0)); }

Options:

a. 1 4 8

b. 2 1 8

c. 1 2 4

d. 2 1 4

e. Compilation Error

Reveal Answer

11. What will be the output of the following program #include<stdio.h> main() { char ch='A'; printf("%d %c",ch,ch); }

Options:

a. A A

b. 65 A

c. A 65

d. 65 65

e. Error

Reveal Answer

12. What is the output of the following program? #include<stdio.h> int main() { int i = 5, j; j=++i + ++i + ++i; printf("%d %d", i , j); }

Options:

a. 8 22

b. 7 19

c. 6 24

d. 7 24

Reveal Answer

13. What is the output of the following program? #include<stdio.h> main() { int a , b; a=-3- -3; b=-3 - -(-3); printf("a=%d b=%d", a , b); }

Options:

a. a = 0, b = -6

b. a = -6 b = 0

c. a = 0 b = 0

d. a = -6 b = -6

e. Compilation Error

Reveal Answer

14. What is the output of the Following program? #include<stdio.h> int main() { int a=2,b=7,c=10; c = a == b; printf("%d", c); return 0; }

Options:

a. Compilation Error

b. 1

c. 0

d. false

Reveal Answer

15. What is the output of the following program? #include<stdio.h> int main() { int x,n; n=7^8; x=3 * 84 - n; printf("X=%d", x); }

Options:

a. 237

b. 252

c. 289

d. 217

Reveal Answer

16. An expression that combines two or more relational expression is known as______

Options:

a. Boolean expression

b. Arithmetic expression

c. Logical expression

d. Relational expression

Reveal Answer

17. Conversion of algebraic expression into C expression is 3x2 + 2x/y + 1 ==== 3xx + 2*x/y + 1

Options:

a. True

b. False

Reveal Answer

18. Which of the following is the correct order of evaluation for the below expression? z = x + y * z / 4 % 2 - 1

Options:

a. * / % + - =

b. = * / % + -

c. / * % - + =

d. % * / - + =

Reveal Answer

19. In an expression b=10; a=b=5, what is the value of a.

Options:

a. 5

b. 10

c. 1

d. 0

Reveal Answer

20. The operand of _type is automatically converted to the ___ type before evaluation of expression.

Options:

a. Lower, Higher

b. Higher, Lower

c. Compilation error

Reveal Answer

Interview Questions and Answer

1. What will be the output of following program? #include<stdio.h> int main() { int x , a , b , c; a = 9; b = 12; c = 3; x = a - b/3 + c*2 - 1; printf("%d",x); }

2. What is the output of the following program? #include<stdio.h> int main() { int y=6; printf("%d",++y); }

3. What is the output of the following program? #include<stdio.h> int main() { int y=6; printf("y=%d",--y); }

4. What is output of the following program? #include<stdio.h> int main() { int i, j = 4; i = j++; printf("i = %d, j = %d", i , j); }

5. What is the equivalent expression assignment operator for the x=x+5;

6. Which of the following are bitwise operators?

7. What is the output of the following program? #include<stdio.h> int main() { int x=3 , y; y=(x > 2) ? (2 * x + 5) : (1.5 * x + 3); printf("%d", y); }

8. What is the output for the following program? #include<stdio.h> int main() { int x=4; printf("%d",x++++xx--); }

9. What is the output of the Following program? #include<stdio.h> main() { float a = 1; float b = 1; printf("%d",sizeof(a+b)); }

10. What is the output of the following program? #include<stdio.h> main() { printf("%d %d %d ",sizeof('7'), sizeof(7), sizeof(7.0)); }

11. What will be the output of the following program #include<stdio.h> main() { char ch='A'; printf("%d %c",ch,ch); }

12. What is the output of the following program? #include<stdio.h> int main() { int i = 5, j; j=++i + ++i + ++i; printf("%d %d", i , j); }

13. What is the output of the following program? #include<stdio.h> main() { int a , b; a=-3- -3; b=-3 - -(-3); printf("a=%d b=%d", a , b); }

14. What is the output of the Following program? #include<stdio.h> int main() { int a=2,b=7,c=10; c = a == b; printf("%d", c); return 0; }

15. What is the output of the following program? #include<stdio.h> int main() { int x,n; n=7^8; x=3 * 84 - n; printf("X=%d", x); }

16. An expression that combines two or more relational expression is known as______

17. Conversion of algebraic expression into C expression is 3x2 + 2x/y + 1 ==== 3xx + 2*x/y + 1

18. Which of the following is the correct order of evaluation for the below expression? z = x + y * z / 4 % 2 - 1

19. In an expression b=10; a=b=5, what is the value of a.

20. The operand of _type is automatically converted to the ___ type before evaluation of expression.

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