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oee [108]
3 years ago
9

In step 4 of the CSMA/CA protocol, a station that successfully transmits a frame begins the CSMA/CA protocol for a second frame

at step 2, rather than at step 1. What rationale might the designers of CSMA/CA have had in mind by having such a station not transmit the second frame immediately (if the channel is sensed idle?
Computers and Technology
1 answer:
DerKrebs [107]3 years ago
5 0

Answer:

There could be a collision if a hidden node problem occurs.

Explanation:

CSMA/CA(carrier sense multiple access/ collision avoidance) is a multiple access method in wireless networking, that allows multiple node to transmit. Collision avoidance of this method is based on preventing signal loss or downtime as a result of collision of transmitting multi signals.

If a node at step 4(transmit frame) sends the first frame, the node still needs to send a RTS(request to send) and to receive a Clear to send (CTS) from the WAP, the is to mitigate the issue of hidden node problem as all frame are treated as unit, so other listening nodes, not detected would seek to connect and transmit as well.

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WHAT DOES INFORMATION TECHNOLOGY DO??<br> Do they offer services or products
notsponge [240]
Yes

Explanation: Information technology, or IT, describes any technology that powers or enables the storage, processing and information flow within an organization. Anything involved with computers, software, networks, intranets, Web sites, servers, databases and telecommunications falls under the IT umbrella.
4 0
2 years ago
Write a class called SimpleSquare that has the following properties: - public int field called num - private int field called sq
mezya [45]

Answer:

public class SimpleSquare{

   public int num;

   private int square;

   

   public SimpleSquare(int number){

       num = number;

       square = number * number;

   }

   

   public int getSquare(){

       return square;

   }    

}

Explanation:

*The code is in Java.

Create a class called SimpleSquare

Declare two fields, num and square

Create a constructor that takes an integer number as a parameter, sets the num and sets the square as number * number.

Since the square is a private field, I also added the getSquare() method which returns the value of the square.

6 0
3 years ago
An employee’s total weekly pay equals the hourly wage multiplied by the total number of regular hours plus any overtime pay. Ove
Feliz [49]

Answer:

C++ programming language is used to implement this program using Dev C++. You can use any C++ compiler to run this program. The code and its explanation is given below in explanation section.

Explanation:

#include<iostream>

using namespace std;

int main()

{

int totalWeeklyPay;//total weekly pay  

int hourlyWage;// wages per hours

 

int totalRegularHour;// total regular hours worked

int totalOverTimeHour;// total over time hours worked

 

int weeklyTotalRegularPay;

int weeklyTotalOverTimePay;

 

cout<<"Enter Wage per hour: ";

 cin>>hourlyWage;

 if (hourlyWage<0)//if use enter negative value

  {

   cout<<"Please enter positive number number for wage per hour\n";

   cout<<"Enter Wage per hour: ";

     cin>>hourlyWage;

  }

cout<<"Enter total regular hour: ";

cin>>totalRegularHour;

if (totalRegularHour<0)//if user enter negative value

  {

   cout<<"Please enter positive total number of regular hour\n";

  cout<<"Enter total regular hour: ";

     cin>>totalRegularHour;

  }

cout<<"Enter total over time hour: ";

cin>>totalOverTimeHour;

 

 if(totalOverTimeHour<0)//if user enter negative value

   {

    cout<<"Please enter positive total number of over time hour\n";

  cout<<"Enter total over time hour: ";

  cin>>totalOverTimeHour;

     

     

 }

 

weeklyTotalRegularPay =hourlyWage*totalRegularHour;// total weekly regular hour pay

weeklyTotalOverTimePay=totalOverTimeHour*hourlyWage*1.5;// total weekly overtime pay

totalWeeklyPay=weeklyTotalRegularPay + weeklyTotalOverTimePay;//total weekly regular hour pay + // total weekly overtime pay

cout<<"Total Weekly Pay is: "<<totalWeeklyPay<<"$";//output

 

 

return 0;

 

}

3 0
3 years ago
Search engines enable you to:A. talk to people via the computer.B. locate Web pages related to a specific subject.C. connect to
GalinKa [24]
The correct answer is B. locate Web pages related to a specific subject.

An example of a search engine is Google: it helps you find Websites with the content you're looking for.
3 0
3 years ago
Which of the following computer component facilitates internet connection?
babunello [35]

Answer:

your answer may be(utility software)

8 0
3 years ago
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