Pearson eText Technology In Action, Complete -- Instant Access (Pearson+)
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ISBN: 9780136874522
Author: Alan Evans, Kendall Martin
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Chapter 9, Problem 1CTQ
Program Plan Intro
Two-factor authentication:
- It is also called as 2FA, which is an extra security layer that is used when logging into websites or applications.
- First, the user has to provide his/ her username and password.
- Second, the user will be provided with another form of authentication method like text message authentication or voice based authentication.
- The three factors that are involved in two-factor authentication include:
- Knowledge
- It is the information that is known to the user like PIN number.
- Possession
- It is nothing but the thing that the user has like an ATM card.
- Inherence
- It is something that the user contains like biometric characteristics.
- Knowledge
Explanation of Solution
Planning to use two-factor authentication on sites:
One would like to use two-factor authentication method on their social media a...
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Methods (Ch6) - Review
1. (The MyRoot method) Below is a manual implementation of the Math.sqrt() method in Java.
There are two methods, method #1 which calculates the square root for positive integers, and
method #2, which calculates the square root of positive doubles (also works for integers).
public class SquareRoot {
public static void main(String[] args) {
}
// implement a loop of your choice here
// Method that calculates the square root of integer variables
public static double myRoot(int number) {
double root;
root=number/2;
double root old;
do {
root old root;
root (root_old+number/root_old)/2;
} while (Math.abs(root_old-root)>1.8E-6);
return root;
}
// Method that calculates the square root of double variables
public static double myRoot(double number) {
double root;
root number/2;
double root_old;
do {
root old root;
root (root_old+number/root_old)/2;
while (Math.abs (root_old-root)>1.0E-6);
return root;
}
}
Program-it-Yourself: In the main method, create a program that…
I would like to know the main features about the following 3 key concepts:1. Backup Domain Controller (BDC)2. Access Control List (ACL)3. Dynamic Memory
Chapter 9 Solutions
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