Consider the following page reference string: 8,7,6,8,5,7,6,4,3 How many page faults would occur for the following page replacement algorithms? For each reference, show the content of the frames. For each algorithm, show which reference gives a page fault. Assume that the process has been allocated 3 frames and that initially all frames are empty. Show for each reference if there is a page fault or not. Give the page fault RATE for two techniques OPT and LRU.