QUIZ ON : C LANGUAGE - STRUCTURE AND UNION

STRUCTURE AND UNION

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Question No# : 01 out of 26

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

A. TRUE

B. FALSE

Question No# : 02 out of 26

A structure can contain similar or dissimilar elements

A. TRUE

B. FALSE

Question No# : 03 out of 26

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# : 04 out of 26

Structures can have bit fields.

A. TRUE

B. FALSE

Question No# : 05 out of 26

Size of all elements in a union should be same.

A. TRUE

B. FALSE

Question No# : 06 out of 26

Which operator connects the structure name to its member name?

A. - (Minus)

B. <- (Left Arrow)

C. . (Dot)

D. Both <- and .

Question No# : 07 out of 26

User-defined data type can be derived by

A. struct

B. enum

C. typedef

D. all of the mentioned

Question No# : 08 out of 26

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# : 09 out of 26

enum types are processed by _________

A. Compiler

B. Preprocessor

C. Linker

D. Assembler

Question No# : 10 out of 26

The memory required in structure is less than union.

A. TRUE

B. FALSE

Question No# : 11 out of 26

The memory required in structure is less than union.

A. TRUE

B. FALSE

Question No# : 12 out of 26

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# : 13 out of 26

The size of a structure can be determined by both size of variable name and size of (struct tag).

A. TRUE

B. FALSE

Question No# : 14 out of 26

What is the similarity between a structure, union and enumeration?

A. All of them let you define new values

B. All of them let you define new data types

C. All of them let you define new pointers

D. All of them let you define new structures

Question No# : 15 out of 26

Does the data type of all elements in the union will be same?

A. TRUE

B. FALSE

Question No# : 16 out of 26

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

A. TRUE

B. FALSE

Question No# : 17 out of 26

Which properly declares a variable of struct Student?

A. struct stu;

B. struct Student stu;

C. stu;

D. int stu

Question No# : 18 out of 26

Which of the data types has the size that is variable?

A. int

B. struct

C. float

D. double

Question No# : 19 out of 26

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

A. TRUE

B. FALSE

Question No# : 20 out of 26

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# : 21 out of 26

Which of the following cannot be a structure member?

A. Another structure

B. Function

C. Array

D. None of the mentioned

Question No# : 22 out of 26

A structure can contain similar or dissimilar elements.

A. TRUE

B. FALSE

Question No# : 23 out of 26

A structure can contain pointer to itself.

A. TRUE

B. FALSE

Question No# : 24 out of 26

Which of the following accesses a variable in structure b?

A. b->var;

B. b.var;

C. b-var;

D. b>var;

Question No# : 25 out of 26

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# : 26 out of 26

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

A. TRUE

B. FALSE