Suppose we have the following page accesses: 1 2342341 21 1. Suppose that there are also three frames within our system. Using the FIFO replacement algorithm, what will be the final configuration of the three frames following the execution of the given reference string? Select one: a. 1, 2, 3 b. 3, 1, 2 с. 4, 1, 2 Previous page Next page Jump to...

Suppose we have the following page accesses: 1 2342341 21 1. Suppose that there are also three frames within our system. Using the FIFO replacement algorithm, what will be the final configuration of the three frames following the execution of the given reference string? Select one: a. 1, 2, 3 b. 3, 1, 2 с. 4, 1, 2 Previous page Next page Jump to...

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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QUESTION 1 v Question Completion Status: Consider the following page reference string: 4, 3, 6, 4, 2, 6, 1, 5, 6, 4 Part (A): Fill in the table using the FIFO replacement algorithm: 4 3 2 Part (B): How many page faults would occur for the following replacement algorithms, assuming three frames were allocated for the process? Number of page faults : Remember that all frames are initially empty, so your first unique pages will cost one fault each. Instructions for the correct way to fill the cells in the table: - If there is no page reference (empty frame), then put a hyphen (-) in the cell and don't leave it as a blank cell. - If the page reference didn't cause a page fault, then put the page number in the cell and without including any asterisks. - In case of a page fault, then put the page number in the cell and include an asterisk next to it, this should be applied to the page number that caused the page fault only. (ex: 2*)
3. Consider FIFO, in slide 32 like below: Reference string: 7,0,1,2,0,3,0,4,2,3,0,3,0,3,2,1,2,0,1,7,0,1 3 frames (3 pages can be in memory at a time per process) ■ reference string 7 0 1 2 0 3 7 7 7 0 0 1 2 0 1 page frames 15 page faults 0 4 2 2 4 3 3 3 1 0 0 23032 1 4 0 4 2 2 2 0 3 3 201 0 1 1 3 2 701 7 1 2 7 7 0 0 2 1 (a) Repeat this slide, but with 5 (five) frames (in report 4, you were asked to do the same slide with 4 frames and 2 frames). How many page faults are there? (b) How many page faults will be there if we use 9 (nine) frames? For this part (b), you can use mathematical argument without really showing how the frames look for each new number. (c) How many page faults will be there is we use 1 (one) frame? Explain!
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Explain the properties of a sample space and different types of sample spaces, also explain the events related to a random experiment. Specify the sample space of each of following experiment. A block of information is transmitted repeatedly over a noisy channel until an error-free block arrives at the receiver. Count the number of transmissions required. Pick a number at random between zero and one. Measure the time between page requests in a Web server.
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Given thamarmemory is composed of only three page trames tor public use.and that a program requests pages in the tollowing order:a, c, b, d, a, c, e, a, c, b, d, eanswer the tollowing questions.right 2018 Cengage LearningUsing the FIFO page removal algorithm, indicate the movement of thepages into and out of the available page frames (called a page traceanalysis) indicating each page fault with an asterisk (*). Then compute the failure and successs ratio
Problem 1. Download the file Square.tif and answer the following questions: i. Smooth the image with a 3x3 spatial filter. ii. Smooth the image with an implementation of Gaussian filter in frequency domain. Change the bandwidth of the filter and show how these changes affect the result. iii. Visualize that filtering in frequency domain can cause wraparound error in spatial domain and explain how can this interference be avoided. Apply your idea as a preprocessing step in part (ii) and display your results. iv. Sum up your conclusions in part (ii) and (iii), and List the Basic Steps required in DFT filtering. Implement all these steps in an M-file, named YOUfft2 (replace YOU with your name). This file must get an arbitrary image as input, smooth the image with a Gaussian filter, and give the filtered image in output. The process of filtering should be done in frequency domain. Problem 2. Download the file CA03.jpg. i.Add Gaussian noise N( z =0, o =10/256) to the image and then apply…
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Consider the following page reference string: 1, 0, 5, 0, 1, 5, 1, 3, 1, 2, 0, 5, 3, 7, 4, 5, 7, Assuming demand paging with three frames, how many page faults would occur for the second-chance replacement algorithm?