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5. Consider a program that generates the following set of page references: BDBAEFBFAGEFAAFBACGF AC Assuming that the program is given 4 page frames, how many page faults are generated using the following page replacement algorithms: a) FIFO b) LRU c) OPT Show the contents of the 4 page frames after every access and indicate when page faults occur. Assume all frames are empty at the beginning of the sequence. For example, the first page access (to page A) will cause a page fault, since no pages are loaded into the frames. Page A will be loaded into the first frame. This is indicated as below. Page AC BD B A EFBFA GEFA AF BAC GF Frame1 A Frame2 Frame3 Frame4 Fault Fill in the tables below and specify the number of page faults for each. a) FIFO Page Frame1 Frame2 Frame3 Frame4 Fault # faults = Y b) LRU Page ACBDBA EFB FA GEFA AF BAC GF A Y ACBDBA EFB F AGEF A A F B |A |C G F

5. Consider a program that generates the following set of page references: BDBAEFBFAGEFAAFBACGF AC Assuming that the program is given 4 page frames, how many page faults are generated using the following page replacement algorithms: a) FIFO b) LRU c) OPT Show the contents of the 4 page frames after every access and indicate when page faults occur. Assume all frames are empty at the beginning of the sequence. For example, the first page access (to page A) will cause a page fault, since no pages are loaded into the frames. Page A will be loaded into the first frame. This is indicated as below. Page AC BD B A EFBFA GEFA AF BAC GF Frame1 A Frame2 Frame3 Frame4 Fault Fill in the tables below and specify the number of page faults for each. a) FIFO Page Frame1 Frame2 Frame3 Frame4 Fault # faults = Y b) LRU Page ACBDBA EFB FA GEFA AF BAC GF A Y ACBDBA EFB F AGEF A A F B |A |C G F

Computer Networking: A Top-Down Approach (7th Edition)
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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5. Consider a program that generates the following set of page references: EFBFAGEFAAFBACGF AC BDBA Assuming that the program is given 4 page frames, how many page faults are generated using the following page replacement algorithms: a) FIFO b) LRU c) OPT Show the contents of the 4 page frames after every access and indicate when page faults occur. Assume all frames are empty at the beginning of the sequence. For example, the first page access (to page A) will cause a page fault, since no pages are loaded into the frames. Page A will be loaded into the first frame. This is indicated as below. Page Frame1 A Frame2 Frame3 Frame4 Fault ACBD BA E F B F AGEFA AF BAC G F Fill in the tables below and specify the number of page faults for each. a) FIFO # faults Y b) LRU Page Page Frame1 A Frame2 Frame3 Frame4 Fault AC BD BA E F B F A GEFA AF BAC G F Y AC BD BA E F B F AGEF AAF BAC G F
Transcribed Image Text:5. Consider a program that generates the following set of page references: EFBFAGEFAAFBACGF AC BDBA Assuming that the program is given 4 page frames, how many page faults are generated using the following page replacement algorithms: a) FIFO b) LRU c) OPT Show the contents of the 4 page frames after every access and indicate when page faults occur. Assume all frames are empty at the beginning of the sequence. For example, the first page access (to page A) will cause a page fault, since no pages are loaded into the frames. Page A will be loaded into the first frame. This is indicated as below. Page Frame1 A Frame2 Frame3 Frame4 Fault ACBD BA E F B F AGEFA AF BAC G F Fill in the tables below and specify the number of page faults for each. a) FIFO # faults Y b) LRU Page Page Frame1 A Frame2 Frame3 Frame4 Fault AC BD BA E F B F A GEFA AF BAC G F Y AC BD BA E F B F AGEF AAF BAC G F
Framel A Frame2 Frame3 Frame4 Fault # faults Y c) OPT Page Frame1 A Frame2 Frame3 Frame4 Fault # faults ACBD BA E F BFA GEFA AF BAC Y G F
Transcribed Image Text:Framel A Frame2 Frame3 Frame4 Fault # faults Y c) OPT Page Frame1 A Frame2 Frame3 Frame4 Fault # faults ACBD BA E F BFA GEFA AF BAC Y G F
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