⟩ Which command is used to set limits on file size a) fsize b) flimit c) ulimit d) usize
c) ulimit
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Program given below will allocate the memory of ___ bytes for pointer "ptr".
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *ptr;
ptr = (int*)malloc(sizeof(int)*4);
ptr = realloc(ptr,sizeof(int)*2);
return 0;
}
a) 2
b) 4
c) 8
d) none of the mentionedIn which condition this prgram will print the string "google"?
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *ptr;
ptr = (int *)malloc(sizeof(int)*10);
if (ptr == NULL)
printf("googlen");
return 0;
}
a) if the memory could not be allocated to the pointer "ptr"
b) if the memory has been allocated to the pointer "ptr" successfully
c) it will never print
d) none of the mentionedWhat is the output of this program?
#include<stdio.h>
#include<stdlib.h>
int main()
{
int ret;
int *ptr;
ptr = (int *)malloc(sizeof(int)*10);
free(ptr);
free(ptr);
return 0;
}
a) it will print nothing
b) it will give segmentaion fault
c) undefined behaviour
d) none of the mentionedWhat is the output of this program?
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *ptr1;
while(1){
ptr1 = malloc(1024*1024);
if(ptr1 == 0)
break;
sleep(1);
printf("googlen");
free(ptr1);
}
return 0;
}
a) it will print "google" until the process has been stopeed by any signal
b) it will print nothing
c) segmentation fault
d) none of the mentionedWhat is the output of this program?
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *ptr1, *ptr2;
ptr1 = malloc(4);
*ptr1 = 10;
*ptr2 = free(ptr1);
printf("%dn",*ptr2);
return 0;
}
a) 10
b) it will print the address stored in ptr1
c) it will print the address stored in ptr2
d) it will give an errorDo you have any idea what is the output of this program?
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *ptr;
*ptr = 10;
*ptr = 20;
printf("%dn",*ptr);
return 0;
}
a) 10
b) 20
c) segmentation fault
d) none of the mentionedWhat is the output of this program?
#include<stdio.h>
int main()
{
int *ptr;
ptr = (int *)calloc(1,sizeof(int));
*ptr = 10;
printf("%dn",*ptr);
return 0;
}
a) 0
b) -1
c) 10
d) none of the mentionedOn Linux, initrd is a file a) containing root file-system required during bootup b) Contains only scripts to be executed during bootup c) Contains root-file system and drivers required to be preloaded during bootup d) None of the above
Which of the following is not a valid run-level? a) S b) 0 c) 8 d) 1
Which file is read by init to get the default run-level? a) /etc/profile b) /etc/init c) /etc/boot d) /etc/inittab
