Explain why the scenario below fails to meet the definition of a stakeholder.

Is spread spectrum transmission done for security reasons in commercial WLANs?

bearhunter [10]

Answer: No

Explanation: Spread spectrum transmission is the wireless transmission technique for the wide channel that helps in decrement of the potential interference.The transmission of signal is based on the varying the frequency knowingly to achieve larger bandwidth.

The use of spread spectrum transmission in the WLAN(wireless local area network)is used for the regulatory purpose The regulation is the controlling of the area through policies.Thus,security is not the service that is provided to WLAN by spread spectrum transmission.

6 0

3 years ago

"Consider yourself driving with 60 miles/hour in a city that has only grid like streets, and your GPS is broken.The specificatio

timama [110]

Answer:

see explaination

Explanation:

// Include the necessary header files.

import java.io.*;

import java.util.Random;

import java.lang.Math;

// Declare a class

public class GPS

{

// Definition of the function.

public static int randSel(int start, int fin)

{

// Declare the object of a class.

Random r = new Random();

// Declare an integer value and store

// value in it.

int rNum = r.nextInt((fin - start) + 1) + start;

// return value.

return rNum;

}

// Definition of the function.

public static double DistFromOrig(double X, double Y)

{

// Declare a double variable.

double dist;

// Calculate the distance.

dist = Math.sqrt(X * X + Y * Y);

// return distance.

return dist;

}

// Start the main method.

public static void main(String[] args)

{

try

{

// declare variables

double X = 0, Y = 0;

int time = 60;

final int NORTH = 0;

final int EAST = 1;

final int SOUTH = 2;

final int WEST = 3;

int Direction = 0;

// Start the while loop

while (time > 0)

{

// check whether the time is greater

// than 5 or not.

if (time >= 5)

{

// update the value of time.

time -= 5;

// call to the method.

Direction = randSel(0, 3);

if (Direction == NORTH)

{

// update the value of y cordinate.

Y = Y + 5;

// display the statement on console.

System.out.println("MOVED NORTH");

}

// Check the direction

if (Direction == EAST)

{

// update the value of x cordinate.

X = X + 5;

// display the statement on console.

System.out.println("MOVED EAST");

}

// Check the direction

if (Direction == WEST)

{

// update the value of x cordinate.

X = X - 5;

// display the statement on console.

System.out.println("MOVED WEST");

}

// Check the direction

if (Direction == SOUTH)

{

// update the value of y cordinate.

Y = Y - 5;

// display the statement on console.

System.out.println("MOVED SOUTH");

}

else

{

// Check the direction

if (Direction == NORTH)

{

// update the value of y cordinate.

Y = Y + time * 1;

time = 0;

}

// Check the direction

if (Direction == EAST)

{

// update the value of x cordinate.

X = X + time * 1;

time = 0;

}

// Check the direction

if (Direction == WEST)

{

// update the value of x cordinate.

X = X - time * 1;

time = 0;

}

// Check the direction

if (Direction == SOUTH)

{

// update the value of y cordinate.

Y = Y - time * 1;

time = 0;

}

// Display the statement on console.

System.out.println(

"Distance of Car After Traveling 1 Hr is "

+ DistFromOrig(X, Y)

+ " miles");

}

// Start the catch block.

catch (Exception e)

{

e.printStackTrace();

}

4 0

3 years ago

Bob received a message from Alice which she signed using a digital signature. Which key does Bob use to verify the signature?Gro

alexira [117]

Answer:

Alice's public key

Explanation:A Public key is a key that can be used for verifying digital signatures generated using a corresponding private key which must have been sent to the user by the owner of the digital signature.

Public keys are made available to everyone required and they made up of long random numbers.

A digital signature signed with a person's private key can only be verified using the person's private key.

7 0

3 years ago

9.11: Array Expander

vodka [1.7K]

The Array Expander is an illustration of arrays and functions.

Arrays are variables that stores multiple values
Functions are named statements that are executed when called

<h3>The Array Expander program </h3>

The Array Expander program written in C++, where comments are used to explain each action is as follows:

#include <iostream>

using namespace std;

//This declares the Array Expander function

int* ArrayExpander(int *oldArr, int size){

//This declares the new array

int *newArr = new int[size * 2];

//This iteration sets values into the new array

for (int i = 0; i < size * 2; i++) {

if(i < size){

*(newArr+i) = *(oldArr+i);

}

else{

*(newArr+i) = 0;

}

//This returns a pointer to the new array

return newArr;

}

//The main method begins here

int main(){

//This declares the length of the array, N

int N;

//This gets input for N

cin>>N;

int initArr[N];

//If N is between 1 and 50

if(N > 0 && N <=50){

//This iteration gets values for the array

for(int i = 0; i<N; i++){

cin>>initArr[i];

}

//This calls the Array Expander function

int *ptr = ArrayExpander(initArr, N);

//This iteration prints the elements of the new array

for (int i = 0; i < N*2; i++) {

cout << ptr[i] << " ";

}

return 0;

}