PLEASE ANSWER ASAP

CISC 3320 - Prof. Xiang 11. (3-pt) The steps involved in handling a page fault are listed as follows, but they are out of order. Please give the correct order with their labeling letters: a) Bring in missing page b) Restart instruction c) Reference the page in question d) Check the page to be on backing store e) Trap to the OS f) Reset (update) page table 12. (4-pt) Given this reference string: 1,2,1,3,1, with 2 frames for each process, what are the number of page faults for FIFO, and LRU, respectively (please show frame content as: 1,12,) ? 13. (3-pt) What is thrashing, and what problem does it lead to? What model helps predict the occurrence of thrashing? 14. (3-pt) Given the following request queue of disk I/O in the form of track numbers, and assuming there are 200 total tracks (0199). 90,50,199,30 How many total tracks are traveled for the following disk scheduling algorithms (note: you only need to write down the expression) a) FCFS (initial disk head at track 40) b) SCAN (initial disk head at track 40, moving toward track 199) c) C-SCAN (initial condition same as b, tracking not counted during reset of the head)