ption 1- according to Week 6- Textbook Readings: 4561 2 2 22 erence string 3452 365 3 4 3. sical frame 0 sical frame 1 4 4 4 sical frame 2 55 sical frame 3 "age faults ctim frames 6 FFFF Option 2- according to Week 6 - Module Readings erence string sical frame 0 2 4561534 52 36 5 2456 3 47 3 sical frame 1

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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Demand paging problems (page replacement algorithms):
1. For the following reference string apply the FIFO page replacement algorithm.
- Option 1- according to Week 6- Textbook Readings:
Reference string
Physical frame 0
Physical frame 1
Physical frame 2
Physical frame 3
Page faults
Victim frames
456 153
2 2 22
4 | 4
4
236 5 3
3
6.
4
5
6.
F F
F F
OR
- Option 2 - according to Week 6 - Module Readings
Reference string 2 45
Physical frame 0
Physical frame 1
Physical frame 2
Physical frame 3
Page faults
Victim frames
6.
1
3
4
5
3
6.
5 3
4
3
6.
2 | 4 5
2 4
5
4
FFFF
2. For the following reference string apply the OPT page replacement algorithm.
Reference string
Physical frame 0
Physical frame 1
Physical frame 2
Physical frame 3
Page faults
Victim frames
2 456 1 5
2 22 2
4 | 4
3
5
236 5 3
7
6
4
5
6.
FFF F
3. For the following reference string apply the LRU page replacement algorithm
Reference string
Physical frame 0
Physical frame 1
Physical frame 2
Physical frame 3
Page faults
Victim frames
2 456 15
2 2 22
3
4 5
23 6 5
4
7
5
4 4 4
55
6.
FFFF
4. For the following reference string apply the LFU page replacement algorithm.
Reference string
Physical frame 0
Physical frame 1
Physical frame 2
Physical frame 3
Page faults
Victim frames
4561 53 4 5
2 22
4 4 4
236 53
7
3 5
2
5
6.
F|F|F
F
3.
3.
3.
Transcribed Image Text:Demand paging problems (page replacement algorithms): 1. For the following reference string apply the FIFO page replacement algorithm. - Option 1- according to Week 6- Textbook Readings: Reference string Physical frame 0 Physical frame 1 Physical frame 2 Physical frame 3 Page faults Victim frames 456 153 2 2 22 4 | 4 4 236 5 3 3 6. 4 5 6. F F F F OR - Option 2 - according to Week 6 - Module Readings Reference string 2 45 Physical frame 0 Physical frame 1 Physical frame 2 Physical frame 3 Page faults Victim frames 6. 1 3 4 5 3 6. 5 3 4 3 6. 2 | 4 5 2 4 5 4 FFFF 2. For the following reference string apply the OPT page replacement algorithm. Reference string Physical frame 0 Physical frame 1 Physical frame 2 Physical frame 3 Page faults Victim frames 2 456 1 5 2 22 2 4 | 4 3 5 236 5 3 7 6 4 5 6. FFF F 3. For the following reference string apply the LRU page replacement algorithm Reference string Physical frame 0 Physical frame 1 Physical frame 2 Physical frame 3 Page faults Victim frames 2 456 15 2 2 22 3 4 5 23 6 5 4 7 5 4 4 4 55 6. FFFF 4. For the following reference string apply the LFU page replacement algorithm. Reference string Physical frame 0 Physical frame 1 Physical frame 2 Physical frame 3 Page faults Victim frames 4561 53 4 5 2 22 4 4 4 236 53 7 3 5 2 5 6. F|F|F F 3. 3. 3.
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