Consider the following page reference string: 7, 2, 1, 4, 7, 4, 4, 5, 2, 2, 3, 1, 4, 6, 2, 6, 7, 4, 3, 1 Using the FIFO, LRU, and Optimal page replacement algorithms with 3 frames, show the page load order and number of page faults that would occur. 5 Explain thrashing as it relates to virtual memory and what affect it has on the operating system. Name at least 2 methods to reduce thrashing. 6 Explain why wear leveling is important with flash storage. Consider the following requests to read data from sectors of a hard drives, where the current position of the head is at sector 142 and the head is moving towards sector 1. What is the order in which the sectors in the queue would be services using the SCAN disk scheduling algorithm? 32, 94, 6, 33, 2, 24, 184, 101, 438, 89, 538, 21, 271, 476

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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need help with questions 4 and 7

Consider the following page reference string:
7, 2, 1, 4, 7, 4, 4, 5, 2, 2, 3, 1, 4, 6, 2, 6, 7, 4, 3, 1
Using the FIFO, LRU, and Optimal page replacement algorithms with 3 frames, show the page load order
and number of page faults that would occur.
5
Explain thrashing as it relates to virtual memory and what affect it has on the operating system.
Name at least 2 methods to reduce thrashing.
6
Explain why wear leveling is important with flash storage.
Consider the following requests to read data from sectors of a hard drives, where the current
position of the head is at sector 142 and the head is moving towards sector 1. What is the order in which
the sectors in the queue would be services using the SCAN disk scheduling algorithm?
32, 94, 6, 33, 2, 24, 184, 101, 438, 89, 538, 21, 271, 476
Transcribed Image Text:Consider the following page reference string: 7, 2, 1, 4, 7, 4, 4, 5, 2, 2, 3, 1, 4, 6, 2, 6, 7, 4, 3, 1 Using the FIFO, LRU, and Optimal page replacement algorithms with 3 frames, show the page load order and number of page faults that would occur. 5 Explain thrashing as it relates to virtual memory and what affect it has on the operating system. Name at least 2 methods to reduce thrashing. 6 Explain why wear leveling is important with flash storage. Consider the following requests to read data from sectors of a hard drives, where the current position of the head is at sector 142 and the head is moving towards sector 1. What is the order in which the sectors in the queue would be services using the SCAN disk scheduling algorithm? 32, 94, 6, 33, 2, 24, 184, 101, 438, 89, 538, 21, 271, 476
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