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Structures, Unions, Enums Questions

NA
SHSTTON
9
Solv. Corr.
36
Solv. In. Corr.
45
Attempted
0 M:0 S
Avg. Time

21 / 43

How do you modify the below structure to have less size in view of byte padding?
typedef struct emp
{
int emp_code; 
char* emp_name;
char grade;
double salary; 
char gender;
struct emp* link;
}employee;

Atypedef struct emp { int emp_code; char* emp_name; char grade; double salary; struct emp* link; char gender; }employee;

Btypedef struct emp { char* emp_name; char grade; int emp_code; double salary; struct emp* link; char gender; }employee;

Ctypedef struct emp { int emp_code; char* emp_name; double salary; struct emp* link; char grade; char gender; }employee;

DNone of these

Answer: Option C

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
11
Solv. Corr.
37
Solv. In. Corr.
48
Attempted
0 M:0 S
Avg. Time

22 / 43

What is the output of the following 'C' program ?
#include<stdio.h>
typedef struct emp
{
char* emp_name;
char grade;
int emp_code; 
double salary;
struct emp* link;
char gender;
}employee;

void main()
{
printf("\n %d",sizeof(employee));
}

A28

B24

C20

DCompilation Error

ENone of these

Answer: Option A

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
122
Solv. Corr.
265
Solv. In. Corr.
387
Attempted
1 M:28 S
Avg. Time

23 / 43

What is the output of the program,if the base address of the array is 1244896?
#include <stdio.h>
void main () {
struct {
float c ,
union p { 
char c; 
char *cp; 
short s;

} uvar[5);

} svar [6];

printf("%d %d", &svar[2], &svar[5]);

}

A1244784 1244976

B1244944 1245016

C1244784 1244932

D1244944 1244992

Answer: Option B

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
193
Solv. Corr.
202
Solv. In. Corr.
395
Attempted
0 M:1 S
Avg. Time

24 / 43

Choose the correct option.

Which of the following is a valid bit field declaration?


Astruct a {int *var : 5; }test;

Bstruct a {int var : 0; }test;

Cstruct a {int var[3) : 10;}test;

Dstruct a {int : 0;}test;

Answer: Option B

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
187
Solv. Corr.
225
Solv. In. Corr.
412
Attempted
1 M:29 S
Avg. Time

25 / 43

Choose the correct option.

Structure can be used


ATo hold different datatypes

BHave pointers to structure

CTo assign to one another

DAll the above

Answer: Option D

Explanation:

To hold different datatypes

Workspace

NA
SHSTTON
30
Solv. Corr.
14
Solv. In. Corr.
44
Attempted
0 M:0 S
Avg. Time

26 / 43

What will be output of the following "c" code?
#include<stdio.h>
enum color{BLACK, BLUR, GREEN};
void main()
{
printf("%d %d %d", BLACK, BLUR, GREEN);
}

A0 1 2

B0 0 0

CGarbage Value

D0 1 1

Answer: Option A

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
5
Solv. Corr.
41
Solv. In. Corr.
46
Attempted
0 M:0 S
Avg. Time

27 / 43

Choose the correct option.

Consider the following declarations

typedef struct {
char name [20];
char middlename [5];
char surname [20];
} VARI;
VARI optical [20];


Aoptical is an array of20 characters only

Boptical is an array of 20 names where each name consists of a name, middlename and surname.

Coptical is a new type

DNone of these

Answer: Option C

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
1
Solv. Corr.
37
Solv. In. Corr.
38
Attempted
0 M:0 S
Avg. Time

28 / 43

Choose the correct option.

Consider the following definitions

struct circle {
float radius;
struct point centre;
} circle cl;

struct point {
int x;
int y;
}

One can define a circle by the following assignment statement


Acircle cl.radius = 10; circle cl.centre.x = 0; circlet cl.centre.y = 0;

Bcircle.radius = 10, circle cl.x = circle cl.y = 0;

Ccircle cl. circle.radius = 10; circle cl. circle. centre. point. x = circle cl.circle.centre.point.y = 0

Dradius = 10; x = 0; y = 0;

Answer: Option D

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
13
Solv. Corr.
28
Solv. In. Corr.
41
Attempted
0 M:0 S
Avg. Time

29 / 43

Choose the correct option.

Consider the following declaration

struct list {
int x;
struct list *next;
)*head;

The statement head.x = 100


Aassigns 100 to one element of the structure list

Bcreates a node of type list and assigns a value to x

Ccreates a head of the list

Dis an erroneous statement

Answer: Option B

Explanation:

Here is no explanation for this answer

Workspace

NA
SHSTTON
34
Solv. Corr.
15
Solv. In. Corr.
49
Attempted
0 M:0 S
Avg. Time

30 / 43

If an integer occupies 4 bytes and a character occupies 1 byte of memory, each element of the following structure would occupy how many bytes?
struct name {
int age;
char name[20];
}

A5

B24

C21

D22

Answer: Option B

Explanation:

qw

Workspace

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