n entry in a page table points to a page frame in memory, what if two entries in a page table points to same page frame? Does this effect copy large amount of data? Can updating one page effect other page?
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: the answer is given below:-
Q: s to frames. b. )increase the page fault rate. c.) decrease the page fault rate.
A: Ans-1 The aim of creating various page replacement algorithms is to "decrease the page fault rate" .…
Q: e number of frames increases, the number of page faults also increases. 2. Which of the following…
A: NOTE: ACCORDING TO COMPANY POLICY WE CAN SOLVE ONLY 1 QUESTION. YOU CAN RESUBMIT THE QUESTION AGAIN…
Q: With the LRU page replacement policy and enough space for storing 3-page frames, the memory page…
A: A B C B A D A B C D A B A C B D A A A A A D D D C C B B B B B A A A D…
Q: a) Prepare a page trace analysis and count the number of page faults by First-In-First-Out (FIFO)…
A: Reference string: 4 2 1 2 4 3 2 4 6 2
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: 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: 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: 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: replaced, which of the ff. pages is chosen if FIFO algorithm is used? 2. When a page is to be…
A: 1) Explanation This algorithm is used by the operating system to track all the memory pages in a…
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: How many page faults does the LRU page replacement algorithm produce? 7 1 2 0 3 0 4 2 3 0 3 2 1 2 0…
A: ANSWER : B (12)
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: There are different page replacement algorithm used for memory management by operating system. These…
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: Consider a web page with one HTML file of size 10 KBytes and 5 objects each of size
A: 2RTT is the initial required connection one for TCP connection and one for HTML base file. Total…
Q: Which of the following term is used to monitor the connection between a page of a process to a frame…
A: Page offset can be defined as the least significant or the least important bits which specifies the…
Q: Consider 1, 2, 3, 4, 1, 2, 5, 1, 2 and apply FIFO page replacement algorithm with frames = 3. What…
A: GIVEN : Total frames: 3 Algorithm: FIFO String: 1 2 3 4 1 2 5 1 2 FIND : No. of page faults
Q: how many page faults would occur for the following replacement algorithms? • LRU replacement • FIFO…
A:
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: 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: Assignment LRU paging program has the following page reference string 0123342453346256 If we…
A: LRU (Least Recently Used) paging is the page replacement algorithm, in which a new page is referred…
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,…
A: Given:- Consider the following page reference string: 1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3,…
Q: The sliding window of size d = 6 contains the references (0 1 0 2 0 3). The next 5 references are: 3…
A: Hey there, I am writing the required solution of the questin mentioned above. Please do find the…
Q: .Consider the following page reference string: 7, 2, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1, 2, 3, 0,1…
A:
Q: A process refers to 5 pages, A, B, C, D, E in the order : A, B, C, D, A, B, E, A, B, C, D, E. If the…
A: Answer :
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: 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: 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 page reference string: 1,4, 3, 2, 1, 4, 5, 1, 4, 3, 2, 5 In addition, there…
A: In FIFO replacement algorithm, the frame that is first inserted gives a way for new frame 1 4 3 2…
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: using C/C++. Determine the number of page faults and page hits by considering the Frame size=3,…
A: Actually, given string is: Frame size=3, Reference String =11 13 10 14 15 12 11 19 18 16 15 17 14…
Q: Consider the following page reference string 1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3, 2, 1,…
A: LRU replacement: we are given with following data LRU frame 1 consider the least recently used…
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: FIFO Page replacement algorithm
A: Here is the answer for the given reference string which is as follows:
Q: 1. If A would like to send a frame to A', which machine(s) is going to see the frame? | Select] 2.…
A: Here, we're going to talk about how the switch forwards frames, filters out MAC addresses, and…
Q: How does the PFR-based frame allocation algorithm respond to the page fault rate that is too low? It…
A: According to the information given:- We have to choose the correct option to satisfy the statement.…
Q: 1, 2, 3, 4, 2, 1, 5, 6,2, 1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6 How many page faults would occur for the…
A: In LRU, pages which are referred recently will be given preference In FIFO algorithm, page which…
Q: Consider the following page reference string, for a memory with four frames. All frames are…
A: Page reference String - 1,2,3,8,2,1,5,6,2,1,2,3,7,6,3,2 Least Recently Used page replacement…
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: 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: f three physical pages with below page reference sequence: 1, 2, 3, 2, 1, 4, 3, 5,
A: Given: A computer memory with a total of three physical pages with below pagereference sequence: 1,…
Q: 5. How many page faults would occur for the following reference string by using ORA page replacement…
A: Solution is:
Q: 6. please using program Java How many page faults would occur for the following reference string by…
A: Given that Total frames are 3 Reference String: 2, 0, 3, 0, 4, 2, 3, 0, 1, 2, 3, 4, 0, 1,2
Q: (1) Page number P =? (2) Offset w =? (3) Page frame number = ? (4) Physical address = ? Put your…
A: Here page size is 512 words. Therefore page offset bits is log(512) =9 bits.
Q: Consider 1, 2, 3, 4, 1, 2, 5, 1, 2 and apply FIFO page replacement algorithm with frames-3. What is…
A: By considering 1, 2, 3, 4, 1, 2, 5, 1, 2 and applying FIFO page replacement algorithm with…
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: (a) Consider a web with the pages 0, 1, 2, 3. The pages have the following links: 0→1, 0→2, 2→3,…
A: Note: As you have asked multiple questions, as per our policy, we will solve the first question for…
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,…
An entry in a page table points to a page frame in memory, what if two entries in a page table points to same page frame? Does this effect copy large amount of data? Can updating one page effect other page?
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- I have a 128-bit computer where addresses are 128 bits wide. I want to implement virtual memory with paging for this computer, and I want to use a page size of 4KB. I will design it so that a page table consumes exactly one page. How many page table entries (PTEs) fit within a page?Short Answer: A program has the following page reference string 0122 3 4 4 1 3 3 25 66 2 4 If we allocate three page frames to the program using LRU a. Please draw a figure to show the page allocation/replacement. b. How many page faults will be generated?What happens if a process tries to access a page that was not brought into memory? What are the steps involved in this? Each and every step should be mentioned in bullets form.
- 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…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 15 0 2 10 0 3 13 0 4 14 0 5 -- 0 6 5 0 7 0 0 8 -- 0 9 9 0 10 1 0 11 11 0 12 2 0 13 − 0 14 3 0 15 8 0 Convert the following virtual addresses (in hexadecimal) to the equivalent physical addresses. You may provide answers in either hexadecimal or decimal. Show the calculation steps Also set the reference bit for the appropriate entry in the page table. 0xD551 0x8D17 0x33E2In a main memory-disk virtual storage system, the page size is 1KByte and the FIFO algorithm is used for page replacements. A given program has been allocated three page frames in the main memory and it makes the following 16 memory references when it starts executing (the addresses are given in decimal):500, 2000, 2500, 800, 4000, 1000, 5500, 1500, 2800, 400, 5000, 700, 2100, 3500, 900, 2400 Fill in the contents of the three page frames after each memory reference in a table and calculate the hit ratio. Hint: denote by 'a' the page consisting of locations 0 through 1023 in memory. Similarly, b: 1024-2047, c: 2048-3071, d: 3072-4095, e: 4096-5119 and f: 5120-6143. Round to three decimal places.
- In a main memory-disk virtual storage system, the page size is 1KByte and the OPTIMAL algorithm is used for page replacements. A given program has been allocated three page frames in the main memory and it makes the following 16 memory references when it starts executing (the addresses are given in decimal):500, 2000, 2500, 800, 4000, 1000, 5500, 1500, 2800, 400, 5000, 700, 2100, 3500, 900, 2400 Fill in the contents of the three page frames after each memory reference in a table and calculate the hit ratio. Hint: denote by 'a' the page consisting of locations 0 through 1023 in memory. Similarly, b: 1024-2047, c: 2048-3071, d: 3072-4095, e: 4096-5119 and f: 5120-6143. Round to three decimal places.Develop a data type for a buffer in a text editor that implements the following API:public class BufferBuffer() create an empty buffervoid insert(char c) insert c at the cursor positionchar delete() delete and return the character at the cursorvoid left(int k) move the cursor k positions to the leftvoid right(int k) move the cursor k positions to the rightint size() number of characters in the bufferAPI for a text bufferHint : Use two stacksLoad infile using one byte per channel and save it as a PNG, using outfile for the file name. Use one byte per channel. graphics.cpp 1 #define STB IMAGE IMPLEMENTATION 2 #define STB IMAGE WRITE IMPLEMENTATION #include "stb_image.h" #include "stb_image_write.h" 3 4 #include #include 7 using namespace std; 8 9. int main() 10 { string infile = "pete.png"; string outfile = "out.png"; 11 12 13 14 15 16 17 } CodeCheck Reset
- A program computes the row sums (see image) of an array A that is 100 by 100. Assume that the computer uses demand paging with a page size of 1000 words, and that the amount of main memory allotted for data is five page frames. Is there any difference in the page fault rate if A were stored in virtual memory by rows or columns? Explain.What happens if a process attempts to visit a page that hasn't been cached? What are the phases in this process? Each step should be broken down into bullet points.2.3 Describe the defences against buffer overflows that can be implemented when running programs.