Interview Questions

1. Which of the following does a structure stores?

Options:

a. Multiple values of the same type

b. Multiple values of the different type

c. Multiple values of the same user-defined type

d. None of the above

Reveal Answer

2. Which of the following is the correct syntax for declaring a structure?

Options:

a. struct ( Datatype 1 Datatype 2 };

b. struct tag_name { Datatype 1; Datatype 2; };

c. struct tag_name { Datatype 1 Datatype 2 }

d. struct; { Datatype 1 Datatype 2 }

Reveal Answer

3. Which of the following is the correct way of assigning a value to the ‘name’ field of a structure ‘book’

Options:

a. Book.name

b. Book->name

c. Book(name)

d. None of the above

Reveal Answer

4. The uninitialized integer data type of a structure contains which of the following default values?

Options:

a. Garbage

b. Zero

c. one

d. None of the above

Reveal Answer

5. The uninitialized character data type of a structure contains which of the following default values

Options:

a. Garbage

b. Zero

c. ‘\0’

d. None of above

Reveal Answer

6. The tag name of a structure is optional.

Options:

a. True

b. False

Reveal Answer

7. Structure may contain member of only one data type.

Options:

a. True

b. False

Reveal Answer

8. Structure variable are used to declare data type containing multiple fields.

Options:

a. True

b. False

Reveal Answer

9. A copy of the content of a structure variable to another structure variable of the same type is valid.

Options:

a. True

b. False

Reveal Answer

10. Structure is always passed to function by pointers.

Options:

a. True

b. False

Reveal Answer

11. The '.' operator can be used access structure elements using a structure variable.

Options:

a. True

b. False

Reveal Answer

12. Pointer can be used to access the member of structure variable.

Options:

a. True

b. False

Reveal Answer

13. The keyword typedef is used to define a new data variable.

Options:

a. True

b. False

Reveal Answer

14. A union can have another union as one of the members.

Options:

a. True

b. False

Reveal Answer

15. Union contain member of the different data type.

Options:

a. False

b. True

Reveal Answer

16. A member in a structure can itself be a structure

Options:

a. True

b. False

Reveal Answer

17. The uninitialized character data type of a structure contains which default value?

Options:

a. Garbage

b. Zero

c. ‘/0’

d. None

Reveal Answer

18. What is maximum level C allows for nesting of the structure?

Options:

a. 13

b. 14

c. 15

d. 16

Reveal Answer

19. Which is the valid statement for following declaration of struct abc a, b, c;

Options:

a. scanf(“%d”, &a);

b. printf(“%d”, b);

c. a = b;

d. a =b + c;

Reveal Answer

20. What will be the size of a union variable in following declaration? Union value { int a; float b; char c; }

Options:

a. 1

b. 2

c. 4

d. 8

Reveal Answer

21. Identify the error in the program? struct item { int a; struct item *a; };

Options:

a. Error structure declaration

b. Linker Error

c. No Error

d. None of above

Reveal Answer

22. Identify the error in the program? struct item { int a; struct item a; };

Options:

a. Error in structure declaration

b. Linker Error

c. No Error

d. None of above

Reveal Answer

23. Identify the error in the program? #include<stdio.h> int main() { union a { int a; char ch[2]; }; union a v1 = {123}; union a v2 = {0, 5}; }

Options:

a. Error invalid union declaration

b. Error in initializing v2

c. No error

d. None of above

Reveal Answer

24. How to access chr for n2 structure variable? struct comp { char chr; float b; }; struct num { struct complex c1; int c; }n1, n2

Options:

a. n2.c1.chr

b. n1.c1.chr

c. n2.chr

d. n1.chr

Reveal Answer

25. What will be output of the following code? int main() { struct { int num; float f; char mess[50]; }m; m.num= 1; m.f=3.14; strcpy(m.mess, "Hello"); printf("%d %d %d\n", &m.num, &m.f, m.mess); printf("%d %f %s\n", m.num, m.f, m.mess); }

Options:

a. 93504 93508 93512 1 3.140000 Hello

b. 1 3.140000 Hello

c. 93504 93508 93512

d. 234 453.5674 65774 1 3.140000 Hello

Reveal Answer

26. What will be output of the following code? int main() { static struct item s1 ={"ABC","XYZ"}; printf("%c %c\n",s1.ch[0], s1.str); printf("%s %s\n",s1.ch, s1.str); } struct item { char ch[7]; char str; };

Options:

a. A X ABC XYZ

b. ABC XYZ A X

c. X A AA XYZ

d. XYZ X A X

Reveal Answer

Interview Questions and Answer

1. Which of the following does a structure stores?

2. Which of the following is the correct syntax for declaring a structure?

3. Which of the following is the correct way of assigning a value to the ‘name’ field of a structure ‘book’

4. The uninitialized integer data type of a structure contains which of the following default values?

5. The uninitialized character data type of a structure contains which of the following default values

6. The tag name of a structure is optional.

7. Structure may contain member of only one data type.

8. Structure variable are used to declare data type containing multiple fields.

9. A copy of the content of a structure variable to another structure variable of the same type is valid.

10. Structure is always passed to function by pointers.

11. The '.' operator can be used access structure elements using a structure variable.

12. Pointer can be used to access the member of structure variable.

13. The keyword typedef is used to define a new data variable.

14. A union can have another union as one of the members.

15. Union contain member of the different data type.

16. A member in a structure can itself be a structure

17. The uninitialized character data type of a structure contains which default value?

18. What is maximum level C allows for nesting of the structure?

19. Which is the valid statement for following declaration of struct abc a, b, c;

20. What will be the size of a union variable in following declaration? Union value { int a; float b; char c; }

21. Identify the error in the program? struct item { int a; struct item *a; };

22. Identify the error in the program? struct item { int a; struct item a; };

23. Identify the error in the program? #include<stdio.h> int main() { union a { int a; char ch[2]; }; union a v1 = {123}; union a v2 = {0, 5}; }

24. How to access chr for n2 structure variable? struct comp { char chr; float b; }; struct num { struct complex c1; int c; }n1, n2

25. What will be output of the following code? int main() { struct { int num; float f; char mess[50]; }m; m.num= 1; m.f=3.14; strcpy(m.mess, "Hello"); printf("%d %d %d\n", &m.num, &m.f, m.mess); printf("%d %f %s\n", m.num, m.f, m.mess); }

26. What will be output of the following code? int main() { static struct item s1 ={"ABC","XYZ"}; printf("%c %c\n",s1.ch[0], s1.str); printf("%s %s\n",s1.ch, s1.str); } struct item { char ch[7]; char str; };

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