1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SIZIF [17.4K]
4 years ago
7

Compare GBN, SR, and TCP (no delayed ACK). Assume that the timeout values for all three protocols are sufficiently long such tha

t 5 consecutive data segments and their corresponding ACKs can be received (if not lost in the channel) by the receiving host (Host B) and the sending host (Host A) respectively. Suppose Host A sends 5 data segments to Host B, and the 2nd segment (sent from A) is lost. In the end, all 5 data segments have been correctly received by Host B.
Computers and Technology
1 answer:
kvv77 [185]4 years ago
4 0

Answer and Explanation:

a)

For Go-Back-N:

  Host A sent total number of segments is 9.The initial segment numbers are 1,2,3,4,5 and re-sent the segemnts 2,3,4 and 5 because 2nd segment was lost.

Host B sent the number of ACKs are 8.Host B sent ACKs 1 by four times because 2nd segment was lost and sent 4ACKs with sequence numbers 2,3,4 and 5

selective repeat:

 Host A sent total number of segments is 6.The initial segment numbers are 1,2,3,4,5 and re-sent the segemnts 2 because 2nd segment was lost.

Host B sent the number of ACKs are 5.Host B sent four ACKs with sequence numbers 1,3,4,5 and re-sent ACK2 with sequence number 2 because 2nd segment was lost.

TCP :

Host A sent total number of segments is 6.The initial segment numbers are 1,2,3,4,5 and re-sent the segemnts 2 because 2nd segment was lost.

Host B sent the number of ACKs are 5.Host B sent four ACKs with sequence number 2 and There is one ACK with sequence number 6.TCP always send an ACK with expected sequence number

b) If the timeout values for all three protocol are much longer than 5*RTT,then TCP protocol successfully delivers all five data segments in shortest time interval.

 

You might be interested in
When we type there Is blue like thing blinking what's that called ​
taurus [48]

Answer:

a cursor? I think.

3 0
3 years ago
Read 2 more answers
Hello users !
vazorg [7]

no here r the ranks:Beginner

Helping Hand

Virtuoso

Expert

and genius

5 0
4 years ago
Read 2 more answers
Instructions The population of town A is less than the population of town B. However, the population of town A is growing faster
weeeeeb [17]

Answer: The c++ program is given below.

#include <iostream>

using namespace std;

int main() {

float townA, townB, growthA, growthB, populationA, populationB;

    int year=0;    

cout<<"Enter present population of town A : ";

cin >> townA;  

cout<<endl<<"Enter present growth rate of town A : ";

cin >> growthA;

growthA = growthA/100;  

cout<<endl<<"Enter present population of town B : ";

cin >> townB;  

cout<<endl<<"Enter present growth rate of town B : ";

cin >> growthB;

growthB = growthB/100;  

do

{

    populationA = townA + (townA * growthA);

    populationB = townB + (townB * growthB);      

    townA = populationA;

    townB = populationB;      

    year++;      

}while(populationA < populationB);  

cout<<endl<<"After " <<year<< " years, population of town A is "<<populationA << " and population of town B is "<< population<<endl;

return 0;

}

Explanation:

All the variables for population and growth rate are declared with float datatype.

The user inputs the present population of both the towns.

The growth rate entered by the user is the percentage growth.

For example, town A has 10% growth rate as shown in the output image.

The program converts 10% into float as 10/100.

growthA = growthA/100;

growthB = growthB/100;

The above conversion is done to ease the calculations.

The year variable is declared as integer and initialized to 0.

The growth in population is computed in a do-while loop. After each growth is calculated, the year variable is incremented by 1.

The loop continues until population of town A becomes greater than or equal to population of town B as mentioned in the question.

Once the loop discontinues, the final populations of town A and town B and the years needed for this growth is displayed.

The new line is introduced using endl keyword.

The function main has return type int hence, 0 is returned at the end of the program.

6 0
4 years ago
How to write a C++ program that allows a user to enter their rating of the three movies in the Dark Knight Trilogy and then disp
8_murik_8 [283]

The program is an illustration of arrays.

Arrays are used to hold multiple values in one variable.

The program in C++ where comments are used to explain each line is as follows:

#include <iostream>

using namespace std;

int main(){

   //This declares an array of three elements for the three ratings

   int ratings[3];

   //This initializes the sum of the ratings to 0

   int total = 0;

   //The following iteration gets input for the three ratings

   for(int i = 0; i<3;i++){

       cin>>ratings[i];

       //This calculates the sum of all inputs

       total+=ratings[i];

   }

   //This declares and initializes the lowest and the highest ratings

   int lowest = ratings[0], highest = ratings[0];

   //This iterates through the array

   for(int i = 1; i<3;i++){

       //The following if condition determines the lowest rating

       if (lowest > ratings[i]){    lowest = ratings[i];        }

       //The following if condition determines the highest rating

       if (highest < ratings[i]){            highest = ratings[i];        }

   }

   //This prints the output header

   cout<<"The ratings are: ";

   //The following iteration prints the three ratings

   for(int i = 0; i<3;i++){

       cout<<ratings[i]<<" ";   }

   //The prints the highest ratings

cout<<endl<<"Highest: "<<highest<<endl;

   //The prints the lowest rating

   cout<<"Lowest: "<<lowest<<endl;

   //The prints the average rating

cout<<"Average: "<<total/3<<endl;

   return 0;

}

At the end of the program, the ratings entered, the highest rating, the lowest rating, and the average of the ratings are printed.

See attachment for sample run

Read more about similar programs at:

brainly.com/question/13261254

8 0
3 years ago
What is computer with figure​
GenaCL600 [577]

Answer:

A computer is an electronic device that accept raw data and instructions and process it to give meaningful results.

5 0
3 years ago
Other questions:
  • Mention five features of word processing application​
    10·1 answer
  • A _________ is the broadcast of various types of media over the web.
    10·2 answers
  • Write a program that responds to a positive integer passed on the command line with the number of bits needed to express that nu
    10·1 answer
  • Which is the process that a wireless router uses to translate a private ip address on internal traffic to a routable address for
    14·1 answer
  • A national tax preparation firm is accessing industry-specific productivity applications in the cloud; many other tax preparatio
    13·1 answer
  • 4.2 lesson practice help plzs
    6·1 answer
  • Where can you find the sizing handles for a graphic, shape, or text box? Check all that apply.
    10·2 answers
  • Como se llaman las herramientas y maquinas pque utilizan para hacer cosas artesanales
    10·1 answer
  • When the binary code is retrieved from ram and moved to the cpu, this stage is known as
    8·1 answer
  • How dose computers it use the information to solve problems
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!