Question Answer Tutorial - Linux->Memory

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Question: What is the output of this program?

   #include
   #inlcude

   int main()
   {
       int *ptr;
       double *ptr;
       printf("%d
",sizeof(ptr));
       return 0;
   }

Answer: The compiler will give the error

Question: What is the output of this program?

   #include
   #include

   int main()
   {
       char *ptr;
       ptr = (char *)malloc(sizeof(char)*11);
       ptr = "MCQTutorial";
       printf("%s
",*ptr);
       return 0;
   }

Answer: Segmentation fault

Question: What is the output of this program?

   #include
   #include

   int main()
   {
   char *ptr;
       free(ptr);
       return 0
   }

Answer: Aborted (core dumped)

Question: What is the output of this program?

   #include
   #include

   int main()
   {
       int *ptr1;
       while(1){
           ptr1 = malloc(1024*1024);
           if(ptr1 == 0)
               break;
           sleep(1);
           printf("MCQTutorial
");
           free(ptr1);
       }
       return 0;
   }

Answer: It will print "MCQTutorial" until the process has be
en stopeed by any signal

Question: What is the output of this program?
   #include
   #include

   int main()
   {
       int *ptr1, *ptr2;
       ptr1 = malloc(4);
       *ptr1 = 10;
       *ptr2 = free(ptr1);
       printf("%d
",*ptr2);
       return 0;
   }

Answer: It will give an error

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