Question Answer Tutorial - Linux->Memory

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Question: In which condition this prgram will print the string "MCQTutorial"?
   #include
   #include

   int main()
   {
       int *ptr;
       ptr = (int *)malloc(sizeof(int)*10);
       if (ptr == NULL)
           printf("MCQTutorial
");
       return 0;
   }

Answer: If the memory could not be allocated to the pointer&nbs
p;"ptr"

Question: What is the output of this program?

   #include
   #include

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

Answer: Undefined

Question: What is the output of this program?

   #include
   #include
   #include

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

Answer: 115

Question: What is the output of this program?

   #include

   int main()
   {
       int *ptr;
       ptr = (int *)calloc(1,sizeof(int));
       *ptr = 10;
       printf("%d
",*ptr);
       return 0;
   }

Answer: None of the mentioned options

Question: This program will allocate the memory of ___ bytes for pointer "ptr".

   #include
   #include

   int main()
   {
       int *ptr;
       ptr = realloc(0,sizeof(int)*10);
       return 0;
   }

Answer: 40

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