Homework Answers
Correct Answer:
Explanation:
Lost update problem:
The lost update problem occurs when more than two transactions try to read and update the same data item. When a transaction updates the value of a data item but it is overwritten by another transaction.
There is no locking system used in the given algorithm and the same item is updated by more than one process.
Let us suppose the initial value of x is 10 and the process p1 assigns the value of variable 'x' into the variable 'a'. The process p2 has to initialize the value of x into 'a' and update the value of variable 'a' in the next two statements.
The process p2 has updated the value of x = 12. Now the process p1 will update the value of x = 11 because we have assigned the value before process p2. So, the changes made by the process p2 will be lost.
So, the given algorithm can have a lost update problem.
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please provide full answer with comments this is just begining course of c++ so don't use...
please provide full answer with comments this is just begining
course of c++ so don't use advanced tequenicks I'll put main.cpp,
polynomial.h, polynomial.cpp and Cimg.h at the bottom of pictures.
If you help me with this will be greatly thankful thank
you
main.cpp
#include "polynomial.h"
#include "polynomial.h"
#include "polynomial.h"
#include "polynomial.h"
#include <iostream>
using std::cout;
using std::endl;
int main() {
pic10a::polynomial p1;
p1.setCoeff(0, 1.2);
p1.setCoeff(3, 2.2);
p1.setCoeff(7, -9.0);
p1.setCoeff(7, 0.0);
//degree of polynomial is now 3
cout << p1 <<...
in this problem I have a problem understanding the exact steps, can they be solved and...
in this problem I have a problem understanding the
exact steps, can they be solved and simplified in a clearer and
smoother wayTo understand it .
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(preferably handwritten) for the following question. The answers
have been provided.
Questions:
Answers:
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Question 10
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Problem 3 (10 points). Continuation of Problem 1. [1] (Work 5 points, answer 5 points.) Let X1, X2, X3, X4 be the irreducible characters of D5, where X1 is the trivial character, and X2, X3 are the charac- ters of representations that you found in Problem 2. Compete the character table. Work: Character Table: Char C(1) C(x) C(y) C( ) 1 1 X1 1 X2 Problem 1 (10 points). Let G = D5 be the dihedral group of order 10,...
please provide full answer with comments this is just begining
course of c++ so don't use advanced tequenicks I'll put main.cpp,
polynomial.h, polynomial.cpp and Cimg.h at the bottom of pictures.
If you help me with this will be greatly thankful thank
you
main.cpp
#include "polynomial.h"
#include "polynomial.h"
#include "polynomial.h"
#include "polynomial.h"
#include <iostream>
using std::cout;
using std::endl;
int main() {
pic10a::polynomial p1;
p1.setCoeff(0, 1.2);
p1.setCoeff(3, 2.2);
p1.setCoeff(7, -9.0);
p1.setCoeff(7, 0.0);
//degree of polynomial is now 3
cout << p1 <<...
in this problem I have a problem understanding the
exact steps, can they be solved and simplified in a clearer and
smoother wayTo understand it .
Q/ How can I prove (in detailes) that the following examples match their definitions mentioned with each of them? 1. Definition 1.4[42]: (G-algebra) Let X be a nonempty set. Then, a family A of subsets of X is called a o-algebra if (1) XE 4. (2) if A € A, then A = X...
2008-2. Please provide clear justified step-by-step solutions
(preferably handwritten) for the following question. The answers
have been provided.
Questions:
Answers:
(a) Let X be the set of functions f : R → R in F such that the graph of y - f(x) passes through the point (0, 0). Show that X is a subspace of F (b) For any real number m, define pm E P1 by Pm(x)-mx +1. (c) Let Z P, P2, p3) C P2, where pi(x)...
Question 10
RD 1 (X-μ)/μ|. Show that (5.28) 9. See Problem 5.8. Compute the signal-to-noise ratio r for the random variables from the fol. lowing distributions: (a) P(A), (b) E(n, p), (c) G(p), (d) Γ(α, β), (e) W (α, β), (f) LNue). and (g) P(α,0), where α > 2. 10. Let X and F be the sample means from two independent samples of size n from a popu- lation with finite mean μ and variance σ. Use the Central Limit...
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