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 UWA week 43 (2nd semester, study break) ↓
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helpful
10:54pm Wed 23rd Oct, ANONYMOUS

Hi all! I'm currently on Past Exam 2021 Question 5. I'm wondering if for """ A computer system employing 32-bit addresses implements virtual memory using a two-level page table. The right-most 10 bits of each virtual address are used to specify the required offset within a page. The left-most 8 bits are used to index the primary (or root) page table, and the remaining ‘middle’ 14 bits are used for the secondary page tables. (a) What is the page size in this machine? (b) What is the size of the primary page table? (c) What is the number of secondary page tables? (d) Explain why it is sufficient to keep only the primary page table in the RAM. """ (b) What is the size of the primary page table? Does it want the amount of entries which would be 2^8 = 256 entries or would it be 2^8 x 4 bytes = 1024 bytes (c) What is the number of secondary page tables? Would this just be 256 since each entry in primary would mean 1 secondary page? Thanks for the help!

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