What is the order of the procedure for handling page fault in a system First step 1 Restart the instruction interrupted by the trap. 2Terminate the process if reference was invalid. But if reference is valid and page has not been brought in memory, page it in. 3 Schedule a disk operation to read the desired page into the newly allocated frame. 4 Check the internal table for the process to determine whether the reference was a valid or an invalid memory access. 5Find a free frame (take one from the free-frame list, for example) 6 Modify the internal table kept with the process and the page table to indicate that the page is now in memory