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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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An intranet is an external network.TrueFalse
maria [59]

Answer:

False

Explanation:

An intranet is not an external network.

An intranet is an internal network which is established by an organization for its own use.

External people can not access the Intranet unlike the internet which is accessible to every one.

An organization owns a private network which is called an intranet. Private means that the network is accessible to all those employed within the organization, staff of the company.

Intranet exists only within the company and indicates the following.

1. The company establishes its own network inside the company so that the staff of the company can access and exchange information among themselves.

2. The staff can communicate and have discussions on the network.

3. The information is not accessible to outside parties such as customers, stakeholders, and others.

4. The network is not accessible and does not exists for the outside parties.

5. The term intra means inside and net means network.

Intranet leads to the following benefits.

1. The staff can view and exchange information with more ease and comfort and in less time.

2. Faster access to information increases employee output. Employees can perform better and have more time to focus on their work.

3. Communication among the employees is encouraged and made easy. Any one can communicate with every one in the company.

4. More communication leads to better working relationships among the staff. Cooperation and collaboration among the staff is given a boost.

5. Staff can give their input for the type of information to be held in the respository. This serves as the single point of information which enables smooth work flow.

Intranet also has some drawbacks.

The employees can take undue advantage of this communication channel for personal communications and information exchange.

Unproductive communication can only hamper the culture of the workplace.

Guidelines should be enforced to avoid unnecessary communication.

3 0
4 years ago
How do we store value in a variable? Give an example
Komok [63]

Answer:

hi

Explanation:

im not smart

4 0
3 years ago
Write a program to find all integer solutions to the equation 4x + 3y -9z = 5 for values of x, y, and z between 0 to 100.
rjkz [21]

Answer:

Following are the code to the given question:

#include <iostream>//header file

using namespace std;

int main()//main method

{

  int c= 0;//defining integer variable to count number of solutions

  int x,y,z;//defining integer variable which is used in the loop

  for (x = 0; x <= 100; x++)//defining for loop to x value

     for (y = 0; y <= 100; y++)//defining for loop to y value

        for (z = 0; z <= 100; z++)//defining for loop to z value

           if (4 * x + 3 * y - 9 * z == 5)//use if to check given condition

           {

              c++;//increment count value

              cout << "(" << x << "," << y << "," << z << ")";//print solutions  

              cout << (c % 11? " " : "\n");//use for add file solution in a row

           }

  cout << "\n\nThere are " << c << " solution(s)\n";//print solution couts

  return 0;

}

Output:

Please find the attached file.

Explanation:

In the above-given code four integer variable "x,y,z, and c" is declared, in which "x,y, and z" is used in the for loop with the if conditional statement that checks the given condition and prints the solution and the "c" variable is used to counts the number of solution, and at the last, it uses the print method to print its values.  

8 0
3 years ago
What is the best method to avoid getting spyware on a machine
monitta

Answer: The best method to avoid getting spyware on a user machine is to download software only from trusted websites. And depending on the machine it might say that "This download you are about to install might have spyware or malware and it might infect your laptop" "Do you wish to continue?"

3 0
2 years ago
Why are people's visions of utopias and dystopias subjective?
Leno4ka [110]

Answer:

D. Because the technology needed for one person's utopia may be what creates disaster for another person's dystopia.

Explanation:

3 0
3 years ago
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