The following page table is for a system with 16-bit virtual and physical addresses and with 4,096-byte pages. The reference bit is set to 1 when the page has been referenced. Periodically, a thread zeroes out all values of the reference bit. A dash for a page frame indicates the page is not in memory. The page-replacement algorithm is localized LRU, and all numbers are provided in decimal. PagePage FrameReferenceBit0701−02140313041505806007−084095010−011101290133014−01520Convert the following virtual addresses (in hexadecimal) to the equivalent physical addresses. You may provide answers in either hexadecimal or decimal. Also set the reference bit for the appropriate entry in the page table.0xE13C0x5A970x59D80x10020xCCB1Using the above addresses as a guide, provide an example of a logical address (in hexadecimal) that results in a page fault.From what set of page frames will the LRU page-replacement algorithm choose in resolving a page fault?

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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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The following page table is for a system with 16-bit virtual and physical addresses and with 4,096-byte pages. The reference bit is set to 1 when the page has been referenced. Periodically, a thread zeroes out all values of the reference bit. A dash for a page frame indicates the page is not in memory. The page-replacement algorithm is localized LRU, and all numbers are provided in decimal.

Page	Page Frame	Reference Bit
0	7	0
1	−	0
2	14	0
3	13	0
4	15	0
5	8	0
6	0	0
7	−	0
8	4	0
9	5	0
10	−	0
11	1	0
12	9	0
13	3	0
14	−	0
15	2	0

Convert the following virtual addresses (in hexadecimal) to the equivalent physical addresses. You may provide answers in either hexadecimal or decimal. Also set the reference bit for the appropriate entry in the page table.

0xE13C
0x5A97
0x59D8
0x1002
0xCCB1

Using the above addresses as a guide, provide an example of a logical address (in hexadecimal) that results in a page fault.
From what set of page frames will the LRU page-replacement algorithm choose in resolving a page fault?

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