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3 years ago

8

Host A sends two UDP segments to Server S, one to port 1234 and the other to port 2345. Host B sends one UDP segment to Server S

, port 1234.
a)
The server S needs to open how many server sockets, N, to handle the three segments from Hosts A and B?
N = ?

b)
see attachment

Computers and Technology

1 answer:

SOVA2 [1]3 years ago

8 0

Answer:

A

Explanation:

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It lets them reach out to people on that platform that can advertise their products

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3 years ago

Write a method named circleArea that accepts the radius of a circle as a parameter (as a real number) and returns the area of a

lions [1.4K]

Answer:

public static double circleArea(double radius){

double area = 3.142*Math.pow(radius,2);

return area;

}

Explanation:

Find the complete program in java that prompts the user to enter a value for radius, stores it in a variable, calls the method circleArea() and passes the value for the radius, then displays the area.

import java.util.Scanner;

public class CocaColaVendingTest {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

System.out.println("Please enter the value for radius");

double r = in.nextDouble();

//Calling the method circleArea()

double calcArea = circleArea(r);

System.out.println("The Area is: "+calcArea);

}

public static double circleArea(double radius){

double area = 3.142*Math.pow(radius,2);

return area;

}

}

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3 years ago

A developer has the following class and trigger code:public class InsuranceRates {public static final Decimal smokerCharge = 0.0

deff fn [24]

Answer:

InsuranceRates.smokerCharge

Explanation:

To set the baseCost variable to the value of the class variable smokerCharge, the developer needs to replace

Decimal baseCost = XXX;

with

Decimal baseCost = InsuranceRates.smokerCharge;

This is done using the class reference type.

The smokerCharge should be declared in the InsuranceRates class, at first.

For example Ball b;

And then, a new instance of the object from the class is created, using the new keyword along with the class name: b = new Ball();

In comparing to the example I gave in the previous paragraph, the object reference in the program is:

InsuranceRates rates = new InsuranceRates();

Because the smokerCharge is coming from a different class, it can only be assigned to the variable baseCost via the InsuranceRates class to give:

Decimal baseCost = InsuranceRates.smokerCharge;

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4 years ago

If a file is opened for reading and the file does not exist,what action is taken?

worty [1.4K]

Answer:

C)An error message is issued.

Explanation:

If we try to open a file for reading when that file does not exist, we will get an error message.

For example, in Java we will encounter a FileNotFoundException as in the code below:

try {

FileInputStream fis = new FileInputStream("myFile.txt");

DataInputStream dis = new DataInputStream(fis);

BufferedReader br = new BufferedReader(new InputStreamReader(dis));

String str = null;

while ((str = br.readLine()) != null) {

System.err.println(str);

}

} catch (FileNotFoundException e) {

e.printStackTrace();

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If the file myFile.txt does not exist we can expect to see an exception stack trace corresponding to FileNotFoundException.

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4 years ago

Write a program that lets the user enter a nonnegative integer then uses a loop to calculate the factorial of that number. Displ

ValentinkaMS [17]

Answer:

Following are the program in c++ language

#include <iostream> // header file

using namespace std;// namespace

int main() // main function

{

int num; // variable declaration

long int f=1; // variable declaration

do

{

cout<<"Enter the Positive value:";

cin>>num;

} while(num<0); // i check whether number is non negative or not

while(num>0) // iterating over the loop

{

f=f*num; // calculate the factorial

num--; // decrement the value of num by 1

}

cout<<" factorial is :"<<f; // display the factorial .

return 0;

}

Output:

Enter the Positive value:7

factorial is :5040

Explanation:

Following are the description of the program .

Read the input by user in the "num" variable of "int" type..
The do-while will check the enter number is nonnegative number.
While(n>0) loop is calculating the factorial in the "f" variable .
Finally display the factorial .

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3 years ago