(B) ) What is the significance of using Bankers algorithm? Consider the following snapshot of a system: Allocation МАX Available ABCD ABCD ABCD а. РО b. Р1 c. P2 0012 0012 1520 1000 1750 1354 2356 d. P3 0632 0652 e. P4 0014 0656 Answer the following questions using the Banker's algorithm: What is the content of the matrix Need [1] ii. Is the system in a safe state? Explain [3] iii. i. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediately? Explain [1]

(B) ) What is the significance of using Bankers algorithm? Consider the following snapshot of a system: Allocation МАX Available ABCD ABCD ABCD а. РО b. Р1 c. P2 0012 0012 1520 1000 1750 1354 2356 d. P3 0632 0652 e. P4 0014 0656 Answer the following questions using the Banker's algorithm: What is the content of the matrix Need [1] ii. Is the system in a safe state? Explain [3] iii. i. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediately? Explain [1]

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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Construct the distance matrix. Step by step, compute the new distance matrix and show your results by drawing a dendrogram.
Suppose you are in Canada's Thousand Islands National Park, and in one particular lake there are n small islands that park officials want to connect with floating bridges so that people can experience going between islands without a canoe. The cost of constructing a bridge is proportional to its length. Assume the distance between every pair of islands is given to you as a two dimensional matrix (an example of such a table for n = 8 islands is shown below). A B C Ꭰ E F G H A 240 210 340 280 200 345 120 B 240 265 175 215 180 185 155 C 210 265 - 260 115 350 435 195 Ꭰ 340 175 260 160 330 295 230 E 280 215 115 160 360 400 170 F 200 180 350 330 360 175 205 G 345 185 435 295 400 175 305 H 120 155 195 230 170 205 305 Design an algorithm for determining which bridges they should build to connect the islands at minimal cost. Write down the pseudocode and explain why your algorithm correctly computes the set of bridges of minimal cost. Analyze the runnning time of your algorithm.
Consider the following snapshot of a system: Allocation Мах Available АВCD АВСD АВCD 1520 Po P1 0012 0012 1000 1750 P2 P3 P4 1354 2356 0632 0652 0014 0656 Answer the following questions using the banker's algorithm: a. What is the content of the matrix Need? b. Is the system in a safe state? find out a safe sequence if it is in safe state. c. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediat ely? а. need=max-allocation= 7 5 1 2 2 4 2 b. bool finish[5]={false, false,false,false,false} work[4]=available[4]={1,5,2,0}
Answer the following questions using the banker’s algorithm: a. What is the content of the matrix Need? b. Is the system in a safe state? c. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediately?
Using matlab:
Please answer the following question. You can choose multiple letters from A to J.
I need a clear and fast answer within 20 minutes. Thank you
Suppose that you are given an m X n integer-valued matrix, with each entry denoting the amount of dollars you earn by visiting that entry. You start from the upper-left corner. At each move you can either go down or go right by one step. Design an efficient algorithm that finds the maximum number of dollars you can earn by traversing the matrix.
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3 نقا To sort the elements of the two dimensional matrix (x) according to the elements of the second column of the same matrix, one of the following commands is -:used y = sortrows(x, 2) O y = sort(x) O y = sort(x,' descend') O y = max(x) O y = min(x) O
Q3: Consider the scores of 12 students in Computer course (X) and Mathematic course (Y) given as follows: 1 2 3 4 5 6 7 8 9 10 11 12 74 70 20 74 90 73 55 97 72 68 51 80 Y 80 91 33 73 99 73 67 93 88 70 74 86 Answer the following questions by writing the suitable Matlab statements: 1) to create a matrix named A of 2 lines and 12 columns, the first line of this matrix contains the scores of students in Computer course, the second line contains the scores of students in Mathematic course. 2) to find the score average of the fifth student using the matrix A. 3) to find the most frequent score of Mathematic course using the matrix A. 4) to find the first and third quartiles of Computer course using the matrix A.
Convergence of iterative methods like the Conjugate Gradient Method can be accelerated by the use of a technique called preconditioning. The convergence rates of iterative methods often depend, directly or indirectly, on the condition number of the coefficient matrix A. The idea of preconditioning is to reduce the effective condition number of the problem. The preconditioned form of the n X n linear system Ax = b is where M is an invertible n x n matrix called the preconditioner. When A is a symmetric positive-definite n x n matrix, we will choose a symmetric positive-definite matrix M for use as a preconditioner. A particularly simple choice is the Jacobi preconditioner M = D, where D is the diagonal of A. The Preconditioned Conjugate Gradient Method is now easy to describe: Replace Ax = b with the preconditioned equation M-¹Ax = M-¹b, and replace the Euclidean inner product with (v, w) M. To convert Algorithm 2 in Section 3.3 to the preconditioned version, let zk = M-¹b - M-¹ Axk =…