Answered: ve a two-level page table where the…

ve a two-level page table where the first level is indexed by 15-bits, then how many entries does the first-level page table

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter5: Data Storage Technology

Section: Chapter Questions

Problem 2PE

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Question

Suppose that a machine has 42-bit virtual addresses and 32-bit physical addresses.
{a} How much RAM can the machine support (each byte of RAM must be addressable)?
{b} What is the largest virtual address space that can be supported for a process?
{c} If pages are 2 KB, how many entries must be in a single-level page table?
{d} If pages are 2 KB and we have a two-level page table where the first level is indexed by 15-bits, then how many entries does the first-level page table have?
{e} With the same setup as part {d}, how many entries are in each second-level page table?
{f} What is the advantage of using a two-level page table over single-level page table?

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