QUIZ ON : C LANGUAGE - STRUCTURE AND UNION

STRUCTURE AND UNION

00:00:00

Question No# : 01 out of 20

Size of all elements in a union should be same.

A. TRUE

B. FALSE

Question No# : 02 out of 20

Which properly declares a variable of struct Student?

A. struct stu;

B. struct Student stu;

C. stu;

D. int stu

Question No# : 03 out of 20

enum types are processed by _________

A. Compiler

B. Preprocessor

C. Linker

D. Assembler

Question No# : 04 out of 20

Which of the following is a User-defined data type?

A. typedef int Boolean;

B. typedef enum {Mon, Tue, Wed, Thu, Fri} Workdays;

C. struct {char name[10], int age};

D. all of the mentioned

Question No# : 05 out of 20

Which of the following accesses a variable in structure b?

A. b->var;

B. b.var;

C. b-var;

D. b>var;

Question No# : 06 out of 20

A structure can contain pointer to itself.

A. TRUE

B. FALSE

Question No# : 07 out of 20

All the members of a union share the same memory location.

A. TRUE

B. FALSE

Question No# : 08 out of 20

Which of the following cannot be a structure member?

A. Another structure

B. Function

C. Array

D. None of the mentioned

Question No# : 09 out of 20

A structure can contain similar or dissimilar elements.

A. TRUE

B. FALSE

Question No# : 10 out of 20

Structures can have bit fields.

A. TRUE

B. FALSE

Question No# : 11 out of 20

Difference between structure and union is

A. We can define functions within structures but not within a union

B. We can define functions within union but not within a structure

C. The way memory is allocated

D. There is no difference

Question No# : 12 out of 20

The memory required in structure is less than union.

A. TRUE

B. FALSE

Question No# : 13 out of 20

Which of the following are themselves a collection of different data types?

A. string

B. structures

C. char

D. all of the mentioned

Question No# : 14 out of 20

typedef is used to give a new name to a known data type.

A. TRUE

B. FALSE

Question No# : 15 out of 20

In a union, space is allocated to every member individually.

A. TRUE

B. FALSE

Question No# : 16 out of 20

What will be the output of the following code?

struct { int si;

double d;

float *cp; } s ;

void main() {

printf(“%d, %d, %d”, sizeof(s.d), sizeof(s.cp), sizeof(s)); }

A. 4, 4, 12

B. 8, 2, 12

C. 10, 4, 16

D. 8, 4, 14

Question No# : 17 out of 20

All the members of a union should be of same type.

A. TRUE

B. FALSE

Question No# : 18 out of 20

A structure can contain similar or dissimilar elements

A. TRUE

B. FALSE

Question No# : 19 out of 20

Which of the following is a properly defined struct?

A. struct {int a;}

B. struct a_struct {int a;}

C. struct a_struct int a;

D. struct a_struct {int a;};

Question No# : 20 out of 20

Which operator connects the structure name to its member name?

A. - (Minus)

B. <- (Left Arrow)

C. . (Dot)

D. Both <- and .