Written: (Data structures) 1. write a c pgm to insert a node at the end, at the begning, in the middle of a linked list 2. write a c pgm to delete a node from the end, from the begining and from the middle of the linked list Oral: 1. singly linked list v/s doubly linked list 2. what is segmentation fault 3. malloc v/s calloc 4. what is Memory leak 5. xor logic 6. what is null pointer, dangling pointer 7. what is deadlock, race condition in o.s