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3 years ago

Why does a layer 3 device perform the anding process on a destination ip address and subnet mask?

1 answer:

8 0

To get the network number and node number of the destination machine. The subnet mask is usually called the NETwork MASK, so anding it with the address gives you the network number. Using the not logical operator on the netmask then protects the node bits in a second and operation.

address & netmask = network number
address & not( netmask ) = node number

The not operator essentially just flips the bits of it's argument.

You might be interested in

In C++ please (read the image below for instructions)

FromTheMoon [43]

Using the knowledge in computational language in C code it is possible to write a code that print the month name along with their rainfall inches. Then we have to calculate the total rainfall.

<h3>Writting the code:</h3>

#include <bits/stdc++.h>

using namespace std;

// function to print the rainfall of each month

void rainfallStatistics(string month[], double rainfall[]){

double sum = 0; // variable to store the total sum of rainfall

string maxMonth = month[0]; // variable to return month with maximum rainfall

double maxRainfall = INT_MIN; // variable to store the maximum rainfall

// running the loop till the last month

for(int i=0; i<12; i++){

// printing the month and rainfall

cout<< month[i] << " " << fixed << setprecision(2) << rainfall[i] << " inches" << endl;

// storing the sum

sum = sum + rainfall[i];

// checking the month with highest rainfall

if(rainfall[i] > maxRainfall){

maxRainfall = rainfall[i];

maxMonth = month[i];

}

// calculating the average of the rainfall

double average = sum / double(12);

cout << endl;

cout << "Total for the year " << sum << " inches" << endl;

cout << "Average rainfall per month " << average << " inches" << endl;

cout << "Month with the greatest rainfall was " << maxMonth << " with rainfall of " << maxRainfall << " inches" << endl;

}

// driver program

int main()

{

// array to store the nonth name

string month[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

// array to store the rainfall

double rainfall1[12] = { 4.50, 4.25, 3.26, 1.35, 0.80, 0.20, 0.10, 0.00, 0.40, 1.20, 2.96, 4.71 };

double rainfall2[12] = { 3.50, 1.25, 7.26, 8.35, 2.80, 0.00, 1.10, 4.00, 9.40, 2.20, 3.96, 4.71 };

cout << "Hayward Statistics" << endl;

cout << endl;

cout<< "Month" << " " << "Rainfall" << endl;

// calling the function for Hayward

rainfallStatistics(month, rainfall1);

cout << endl;

cout << "Houston Statistics" << endl;

cout << endl;

cout<< "Month" << " " << "Rainfall" << endl;

// calling the function for Houston

rainfallStatistics(month, rainfall2);

return 0;

}

See more about c code at brainly.com/question/19705654

#SPJ1

8 0

1 year ago

The inability of BAE Automated Systems to create an automated baggage handling system led to a significant delay in the opening

Sergeu [11.5K]

Answer:

True

Explanation:

Airport was truly opened outside the city of Denver, because of the faults in BAE automated system.

6 0

3 years ago

Write a program that takes a point (x,y) from theuser and find where does the point lies. The pointcan

agasfer [191]

Answer:

C++ Program .

#include<bits/stdc++.h>

using namespace std;

int main()

{

int x,y;//declaring two variables x and y.

string s;//declaring string s..

cout<<"enter x and y"<<endl;

cin>>x>>y;//taking input of x and y..

if(x>=0 &&y>=0) //condition for 1st quadrant..

cout<<"the point lies in 1st Quadrant"<<endl;

else if(x<=0 &&y>=0)//condition for 2nd quadrant..

cout<<"the point lies in 2nd Quadrant"<<endl;

else if(x>=0 &&y<=0)//condition for 3rd quadrant..

cout<<"the point lies in 3rd Quadrant"<<endl;

else //else it is in 4th quadrant..

cout<<"the point lies in 4th Quadrant"<<endl;

cout<<"enter n to terminate the program"<<endl;

while(cin>>s)//if the user has not entered n the program will not terminate..

{

if(s=="n")

{

cout<<"the program is terminated"<<endl;

exit(0);

}

cout<<"you have not entered n please enter n to terminate the program<<endl;

}

Explanation:

The above written program is for telling the point lies in which quadrant.I am first declaring two variables x and y.Then after that taking input of x and y after that checking in which quadrant the point lies.

Taking input of the string s declared earlier for program termination the program will keep running until the user enters n.

4 0

3 years ago

EASY AND I GIVE BRAINLIEST!!! What is a good jeopardy question about operating systems?

madam [21]

______ is used in operating system to separate mechanism from policy
A. Single level implementationB. Two level implementationC. Multi level implementationD. None

3 0

3 years ago

The term “frivolous” implies that the author

tiny-mole [99]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
believes that the average individual does not need a smart phone
firivolous mean not serious, light, unimportant.

3 0

3 years ago