"A virtual memory system uses 4 KB pages, 64-bit words, and a 48-bit virtual address. A particular program and its data require 4263 pages. (a) What is the minimum number of page tables required? (b) What is the minimum number of entries required in the directory page? (e) Based on your answers to (a) and (b), how many entries are there in the last page table? a) Each page table handles 512 pages assuming 64-bit words. There are 4263 pages which requires 4263/512 8.33 page tables. So 9 page tables are needed. b) directory entries are needed, requiring 1 directory page. c) 4263 - 8*512 = 167 entries in the last page table. Wet