Question

QUESTION 1

1. In order to print the members of structures in the array, what will be the contents of blanks in the printf statement of the code snippet given below?

   #include <stdio.h>

   struct virus

   {    char signature[25];

         char status[20];

   } v[2] = {

                                 "Yankee Doodle", "Deadly",

                                 "Dark Avenger", "Killer"

                     } ;

   void main( )

   {

         for (int i = 0; i < 2; i++)

                     printf( "\n%s %s", _______________ , _____________ );

   }

   	A.	signature, status
   	B.	v.signature, v.status
   	C.	v[i].signature, v[i].status
   	D.	v.signature[i], v.status[i]

2 points   

QUESTION 2

1.   struct time

   {

         int hours ;

         int minutes ;

         int seconds ;

   } t ;

   struct time *tt ;

   tt = &t ;

   With reference to above declarations, which of the following refers to seconds correctly:

   	A.	tt.seconds
   	B.	(*tt).seconds
   	C.	time.t
   	D.	*tt.seconds

2 points   

QUESTION 3

1. What is the output of following C statements?

   char *ptr = calloc(100, 1);

           ptr = "Welcome";

           printf("%s\n", ptr);

   	A.	Segmentation Fault
   	B.	Welcome
   	C.	Garbage values
   	D.	Compile-time Error

2 points   

QUESTION 4

1. What is the output of following C program?

   #include <stdio.h>

   #include <stdlib.h>

   struct p

       {

           struct p *next;

           int x;

       };

   int main( )

   {

   struct p* p1 = malloc(sizeof(struct p));

           p1->x = 1;

           p1->next = malloc(sizeof(struct p));

           printf("%d\n", p1->next->x);

           return 0;

   }

   	A.	1
   	B.	0
   	C.	Garbage value
   	D.	Compile-time Error

2 points   

QUESTION 5

1. What is the output of following C code?

        struct employee

       {

           char *emp;

       };

   int main( )

   {

                     struct employee e1;

                     struct employee *ePtr = &e1;

                     (*ePtr).emp = "Hello";

                     printf("%d\n%d\n", ePtr, &e1);

                     return 0;

   }

   	A.	Run-time Error
   	B.	Hello Hello
   	C.	Different address
   	D.	Same address

2 points   

Answer 1

Question 1:
v[i].signature, v[i].status

Question 2:
(*tt).seconds

Question 3:
Welcome

Question 4:
Garbage value

Question 5:
Same address

Please up vote the solution if it helped. Thanks!