Device Drivers Question:

Do you know what is the output of this program?

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
char *ptr;
memcpy(ptr,"google",11);
printf("%sn",ptr);
return 0;
}
a) google
b) segmentation fault
c) syntax error
d) none of the mentioned

Answer:

b) segmentation fault
Explanation:
Memory must be allocated to pointer "ptr".
Output:
[root@localhost google]# gcc -o san san.c
[root@localhost google]# ./san
Segmentation fault (core dumped)
[root@localhost google]#

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This program will allocate the memory of ___ bytes for pointer "ptr". #include<stdio.h> #include<stdlib.h> int main() { int ptr; ptr = realloc(0,sizeof(int)10); return 0; } a) 0 b) 10 c) 40 d) none of the mentioned	The connection between the device file and device driver is based on the: a) name of device file b) number of device file c) both (a) and (b) d) none of the mentioned

Device Drivers Question:

Do you know what is the output of this program? #include<stdio.h> #include<stdlib.h> #include<string.h> int main() { char *ptr; memcpy(ptr,"google",11); printf("%sn",ptr); return 0; } a) google b) segmentation fault c) syntax error d) none of the mentioned

Answer:

Do you know what is the output of this program?

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
char *ptr;
memcpy(ptr,"google",11);
printf("%sn",ptr);
return 0;
}
a) google
b) segmentation fault
c) syntax error
d) none of the mentioned