Consider the following page reference string: 1, 7, 3, 4, 3, 1, 7, 6, 2, 1, 5, 3,2, 7, 6, 3, 2, 1, 2, 3, 6,7,1,2. How many page faults occur for the following page replacement algorithms assuming four frames? Assume that all pages are initially used by pages left over from another process, so your first unique pages will all cost one fault each. Your answer to parts a) - c) should include a sketch showing pages resident in memory and those replaced over time, the number of page faults, and any interesting observations a. LRU replacement b. FIFO replacement c. Optimal replacement (Subject:operating system and concept )

Q: Consider the following page reference string: 1, 7, 3, 4, 3, 1, 7, 6, 2, 1, 5, 3,2, 7, 6, 3, 2, 1,…

A: The page replacement algorithm is used for virtual memory management and it helps the OS to decide…

Q: Consider the following page reference string: 1,0, 5, 0, 1, 5, 1,3,1, 2, 0, 5, 3,7, 4, 5,7, Assuming…

A: Objective: Given the following page reference string, 1, 0, 5, 0,1, 5, 1, 3, 1, 2, 0, 5, 3, 7, 4, 5,…

Q: Consider the following page reference string 1,0,5,0,1, 5, 1, 3,1, 2, 0,5, 3, 7, 4, 5, 7, Assuming…

A: Given  The reference string is 1,0,5,0,1,5,1,3,1,2,0,5,3,7,4,5,7 and we have four frames.  There are…

Q: Consider the following page reference string: 1, 4, 2, 1, 3, 0, 2, 4, 5, 1, 0, 1, 3, 2, 1, 5, 4, 1,…

A: In LRU schema we replace the least recently used frame when the cache is full. Consider the…

Q: Consider the following page reference string: 1, 0, 5, 0, 1, 5, 1, 3, 1, 2, 0, 5, 3, 7, 4, 5, 7,…

A: Given that, Consider the following page reference string: 1, 0, 5, 0, 1, 5, 1, 3, 1, 2, 0, 5, 3, 7,…

Q: Consider the following page reference string: 5, 2, 3, 1, 2, 5, 3, 4, 6, 5, 7, 1, 0, 7, 4, 6, 2, 3,…

A: We are given a question on page replacement algorithm where we will be finding the number of page…

Q: Consider the following page reference string: 7, 2, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4, 6, 2, 3,…

A: By considering the page reference string as : 7,2,3,1,2,5,3,4,6,7,7,1,0,5,4,6,2,3,0,1  the demand…

Q: Consider the following page reference string: 7, 2, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4, 6, 2, 3,…

A: Defined the page faults for the given strings using with given replacement algorithms

Q: Consider the following page reference string: 7, 7, 2, 2, 7, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4,…

A: Page Fault and Hit:-  Page fault occurs when the string is not present in the memory and if it is…

Q: Consider the following page reference string: 7, 7, 2, 2, 7, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4,…

A: Demand paging is one of the way of put pages from secondary memory to main memory. In this we do no…

Q: Consider the following page reference string: 7, 7, 2, 2, 7, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4,…

A:

Q: Consider the following page reference string: 7, 7, 2, 2, 7, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4,…

A: LRU stands for Least Recently Used and in this algorithm the frame that is least recently used will…

Q: Consider the following page reference string: 7, 7, 2, 2, 7, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4,…

A: LRU is least recently used    In this demand paging string that replace is the one that is least…

Q: Consider the following page reference string: 5, 3, 7, 5, 3, 6, 1, 0, 4, 6, 2, 0, 1, 27,3, 1, 4, 7,…

A: The Answer is in Below Steps

Q: Consider the following page referance string: 4,2,2,4,6,4,1,2,3,4,1,2,6,1,5 How many page faults…

A: In second chance algorithm, pages are represented with a count and if a page has more count then it…

Q: 28. Consider the following page reference string: 7, 2, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1,0, 5, 4, 6, 2,…

A: As we know that all algorithms want to reduce page faults so the LRU algorithm is a Greedy algorithm…

Q: string: 3,1,3,6,7,5,1,4,5,6,2,2,6,2,2,7,4,5,1,7,2 Assuming demand paging with three frames, how…

A: In optimal page replacement, page which will be not referred in the longest time will be chosen for…

Q: Consider the following page reference string: 7,0,1,2,0,3,0,4,2,3,0,3,1,2,0 How many page faults…

A: A page fault is a form of exception generated by computer equipment when a running program obtains a…

Q: Suppose we have the following page accesses: 1 2342341 21 1. Suppose that there are also three…

A: In given question, we have few page accesses and 3 frames. We have to use FIFO Page replacement…

Q: a) Consider the following page reference string: 5,3,2,4, 6,2,5,6, 2,1,2,4, 6,7,2,6 Assume the…

A: LRU (LEAST RECENTLY USED): In the event of page fault ,replace the page which is least recently…

Q: Consider the following page reference string: 7, 7, 2, 2, 7, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 0, 5, 4,…

A: In this question, we are given page reference strings and we have to find out number of page faults…

Q: Consider the following page reference string 1 2 3 4123 4123 4 12123 1. Which of the following…

A: Question :-

Q: consider the following page reference string: 3,2,5,1,2,3,4,6,1,7,2,1,6,1,3,7,3,2,1,7 How many page…

A: Given page reference string: 3,2,5,1,2,3,4,6,1,7,2,1,6,1,3,7,3,2,1,7 LRU with 3 frame: Page Hits: 4…

Q: Consider the following page reference string: 1, 2, 1, 3, 2, 4, 5, 1, 4, 3, 5, 2, 1, 2, 4, 3, 5 What…

A: Given page reference strings are: 1,2,1,3,2,4,5,1,4,3,5,2,1,2,4,3,5 The optimal page replacement…

Q: Consider the following page reference string: 7, 0, 2, 1, 0, 2, 3, 5, 3, 4, 2, 5, 6, 0, 3, 2, 7, 6,…

A: In Optimal page replacement policy, we select the page for a victim for the replacement which will…

Q: 4. Consider the page reference string 20 2 5 3 3 5 2 20 2 1 2 4 10 . The number of page frames is 3.…

A:

Q: Consider the following page reference string: 1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 3, 1, 4, 6, 3, 2, 1, 2,…

A: OPT algorithm Total frames: 3 Algorithm: Optimal replacement algorithm Reference string length: 21…

Q: Consider the following page reference string 1 23 4 123 4123412123 1. Which of the following…

A: Answer :-  ( B ). I and IV   Introduction  :-    The sting of memory references is called reference…

Q: 5. How many page faults would occur for the following reference string by using ORA page replacement…

A: Solution is:

Q: Consider the following page reference string: 1, 2, 1, 3, 2, 4, 5, 1, 4, 3, 5, 2, 1, 2, 4, 3, 5 What…

A: Defined the hit ratio of the given page reference using optimal replacement algorithm

Q: n entry in a page table points to a page frame in memory, what if two entries in a page table points…

A: Question Asked are a. An entry in a page table points to a page frame in memory, what if two entries…

Q: 6. How many page faults would occur for the following reference string by using FIFO page…

A: FIFO: It stands for First In First Out. In this algorithm, operating system keeps track of all…

Q: A process refers to 5 pages, 1, 2, 3, 4, 5 in the order : 4,1,0,4,2,1,3,4,2,5,2,1,0,4,3,5,2,0,1,4.…

A: FIFO page replacement algorithm: It is a page replacement algorithm that replaces pages appearing on…

Q: Consider the following reference string: 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6. How many page…

A: LRU (Least Recently Used Algorithm): In this algorithm the page to be replaced is least recently…

Q: Consider the following reference string: 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6. How many page…

A: 3 frames:         1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6Frame 1: 1        4…

Q: Consider the following reference string: 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6. How many page…

A: Answer: LRU replacementFIFO replacementOptimal replacementDo any of your examples exhibit Belady's…

Q: Consider the following page reference string: 1, 2, 1, 3, 2, 4, 5, 1, 4, 3, 5, 2, 1, 2, 4, 3, 5 What…

A:

Q: A process refers to 5 pages, 1, 2, 3, 4, 5 in the order : 4,1,0,4,2,1,3,4,2,5,2,1,0,4,3,5,2,0,1,4.…

A: The given problem is related to loading the pages in frames to complete the process.   The process…

Q: A process refers to 5 pages, 1, 2, 3, 4, 5 in the order : 4,1,0,4,2,1,3,4,2,5,2,1,0,4,3,5,2,0,1,4.…

A: Given: We are given the page reference sequence. It is also given that page numbers 1,2,3,4,5 are…

Q: Consider the following page reference string: 1 2 3 4 2 1 5 8 2 12 3 7 8 3 2 12 3 8 How many page…

A: A) Optimal Page Replacement, here we look in the near future and keep the frames that will be used…

Q: Consider a reference string: 1,2,3,4,1,2,5,1,2,3,4,5. the number of frames in the memory is 3. Find…

A:

Q: Fonsider 3-page frames that are initially empty. the page reference string is p, q, r, s, q, p, t,…

A: In least recently used algorithm, w we choose a frame as victim which is not being referred for…

Q: Consider the following page reference string: 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6 What are the…

A: Given Data : Page reference string: 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6 Number of frames = 4…

Q: Consider the following reference string, 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1…

A: The answer is...

Q: consider the following page reference string: 3,2,5,1,2,3,4,6,1,7,2,1,6,1,3,7,3,2,1,7 How many page…

A: Consider the case of three frames per page  In LRU algorithm, the frame which is least recently used…

Q: Consider page reference string of 1 2 3 0 5 0 1 2 1 4 5 0 7 1 2 Using the first in first out (FIFO)…

A: Here total number of pages = 3 FIFO means first in first out where page which has occupied earliest…

Q: B A C E D MyRank is a simplified PageRank algorithm, where each page begins with a value of 1, and…

A: page rank algorithm is based on fact that a page is considered important if it is pointed by other…

Q: Suppose you are trying to access a website but the webpage doesn't seem to be loading. You decided…

A: answer given below.

Q: 1.2 Consider the following CNN. An 8 x 8 x 3 image input, followed by a convolution layer with 2…

A: The answer is

Q: 1.2 Consider the following CNN. An 8 x 8 x 3 image input, followed by a convolution layer with 2…

A: The answer is