Interview Questions

1. Can we have multiple names for functions?

Options:

a. True

b. False

Reveal Answer

2. Can we call one function in another function?

Options:

a. True

b. False

Reveal Answer

3. A function gets defined if the function name is followed by the semicolon?

Options:

a. True

b. False

Reveal Answer

4. Can we call a function from other function any number of times?

Options:

a. True

b. False

Reveal Answer

5. Default return type for a function is?

Options:

a. void

b. int

c. float

d. No return type

Reveal Answer

6. In the below program what will be the error when you execute it? #include<stdio.h> #include<conio.h> prod(x, y, z); void main() { int a,b,c,p; a=b=c=5; p=prod(a,b,c); printf("p=%d",p); } int prod(int x,int y,int z) { int p; p=xyz; return (p); }

Options:

a. Syntax error

b. Run time error

c. Compilation error

d. None of above

Reveal Answer

7. Does a function execute all the statements even though it is not called by other function

Options:

a. True

b. False

Reveal Answer

8. What will be the output of above program if number is 5 #include<stdio.h> int main() { int num,count; printf("\nEnter a number:"); scanf("%d",&num); count=interrupt(num); if(count==2) printf("%d is a prime number",num); else printf("%d is not a prime number",num); return 0; } int interrupt(int num) { int i,count=0; for(i=1;i<=num;i++) { if(num%i==0) count++; } return count; }

Options:

a. Prime number,5

b. Not a prime number,5

c. Compilation number

d. Runtime error

Reveal Answer

9. what will be the output of above program? #include<stdio.h> #include<conio.h> int check(int ch) ; int main() { int i=45; float c; c=check(i); printf("ch=%f",c); } int check(int ch) { float f; f=(ch>=45) ? 3.14 :6.28; return f; }

Options:

a. 3

b. 3.14

c. 3.00

d. 3.00000

Reveal Answer

10. What will be the output of above program? #include<stdio.h> float areacircle(float r); main() { int area; float radius=2.0; area=areacircle(radius); printf("area=%f",area); return 0; } float areacircle(float r) { float a; a=3.14rr; printf("a=%f\n",a); return (a); }

Options:

a. a=125,area=12

b. a=125..5,area=12.0

c. a=12.560000,area=0.000000

d. a=12.500 ,area=12.500

Reveal Answer

11. What will be the output of the following program? main() { if(printf("C for yourself how it works\n")); main(); }

Options:

a. Prints message infinite number of times

b. No output

c. Repetitively printing the message

Reveal Answer

12. What will be the output of the following program? printit(int a,char ch); int main() { char a=65,ch='C'; printit(a,ch); } printit(int a,char ch) { printf("a=%d h=%c",a,ch); }

Options:

a. 65,C

b. C,65

c. C,C

d. c,c

Reveal Answer

13. What will be the output of the following program? #include<stdio.h> int main() { int z=4; printf("%d",printf("%d %d",z,z)); }

Options:

a. 44 3

b. 4 4 3

c. 443

d. 4 43

Reveal Answer

14. Subprograms are referred to as ‘functions’.

Options:

a. True

b. False

Reveal Answer

15. Function type sends values to a calling function. Parameter list (arguments) specifies type of value to be return to a calling function

Options:

a. True

b. False

Reveal Answer

16. User can pass any number of values to called function, but called function can only return one value per call.

Options:

a. True

b. False

Reveal Answer

17. The statement "return;" is used to transfer the value back to the calling function.

Options:

a. True

b. False

Reveal Answer

18. The scope of a variable affects a variable's lifetime.

Options:

a. True

b. False

Reveal Answer

Interview Questions and Answer

1. Can we have multiple names for functions?

2. Can we call one function in another function?

3. A function gets defined if the function name is followed by the semicolon?

4. Can we call a function from other function any number of times?

5. Default return type for a function is?

6. In the below program what will be the error when you execute it? #include<stdio.h> #include<conio.h> prod(x, y, z); void main() { int a,b,c,p; a=b=c=5; p=prod(a,b,c); printf("p=%d",p); } int prod(int x,int y,int z) { int p; p=xyz; return (p); }

7. Does a function execute all the statements even though it is not called by other function

9. what will be the output of above program? #include<stdio.h> #include<conio.h> int check(int ch) ; int main() { int i=45; float c; c=check(i); printf("ch=%f",c); } int check(int ch) { float f; f=(ch>=45) ? 3.14 :6.28; return f; }

10. What will be the output of above program? #include<stdio.h> float areacircle(float r); main() { int area; float radius=2.0; area=areacircle(radius); printf("area=%f",area); return 0; } float areacircle(float r) { float a; a=3.14rr; printf("a=%f\n",a); return (a); }

11. What will be the output of the following program? main() { if(printf("C for yourself how it works\n")); main(); }

12. What will be the output of the following program? printit(int a,char ch); int main() { char a=65,ch='C'; printit(a,ch); } printit(int a,char ch) { printf("a=%d h=%c",a,ch); }

13. What will be the output of the following program? #include<stdio.h> int main() { int z=4; printf("%d",printf("%d %d",z,z)); }

14. Subprograms are referred to as ‘functions’.

15. Function type sends values to a calling function. Parameter list (arguments) specifies type of value to be return to a calling function

16. User can pass any number of values to called function, but called function can only return one value per call.

17. The statement "return;" is used to transfer the value back to the calling function.

18. The scope of a variable affects a variable's lifetime.

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