ect 0/1 pts Question 4 Given references to the following pages by a program, 7,6,8,2,6,3,6,4,2,3,6,3,2,8,2,6,8,7,6,8, How many page faults will occur if the program has three page-frames available to it and uses LRU replacement? Just write the number. correct Question 5 0 / 1 pts Given references to the following pages by a program, 7,6,8,2,6,3,6,4,2,3,6,3,2,8,2,6,8,7,6,8, How many page faults will occur if the program has three page-frames available to it and uses Optimal replacement? Just write the number. ct Question 6 0/1 pts Given references to the following pages by a program, 7,6,8,2,6,3,6,4,2,3,6,3,2,3,2,6,8,7,6,8, If the program has three page-frames available to it and uses LRU replacement, the three frames after the final assignment will be enter the frames separated by commas, eg. if the frames are 1, 2 and 3, write - 1,2,3 without spaces in between)