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
irakobra [83]
3 years ago
12

SMTP (Simple Mail Transfer Protocol) is the standard protocol for transferring mail between hosts over TCP. A TCP connection is

set up between a user agent and a server program. The server listens on TCP port 25 for incoming connection requests. The user end of the connection is on a TCP port number above 1023. Suppose you wish to build a packet filter rule set allowing inbound and outbound SMTP traffic. You generate the following rule set:
Rule Direction Src Addr Dest Addr Protocol Dest Port Action
A In External Internal TCP 25 Permit
B Out Internal External TCP >1023 Permit
C Out Internal External TCP 25 Permit
D In External Internal TCP >1023 Permit
E Either Any Any Any Any Deny

Required:
Describe the effect of each rule.
Computers and Technology
1 answer:
ruslelena [56]3 years ago
5 0

Answer:

The five rules are described as follows:

Rule A permits the inbound Simple Mail Transfer Protocol (SMTP) connection.

Rule B permits the inbound Simple Mail Transfer Protocol (SMTP) connection.

Rule C permits the outbound Simple Mail Transfer Protocol (SMTP) connection.

Rule D permits the outbound Simple Mail Transfer Protocol (SMTP) connection.

Rule E does not perform any action. Thus it is when the action is denied.

Explanation:

Rule A allows information transfer of the incoming email from the external server to the internal remote server, thus this allows an inbound connection.

Rule B allows information transfer of the incoming email from the remote server to the external remote server, thus this allows an inbound connection.

Rule C allows information transfer of outgoing email from the external server to the internal remote server, thus this allows an outbound connection.

Rule D allows information transfer of the outgoing email from the remote server to the external remote server, thus this allows an outbound connection.

Rule E does not allow any action in either direction thus it is when action is denied.

You might be interested in
There are types of templates​
guajiro [1.7K]
You didn’t explain your question correctly so I can’t help you
3 0
3 years ago
Characteristics of successful entrepreneurs include
crimeas [40]
The answer would be A because grit means to fight hard to get what you want. Submission would be to give in to pressure and give up. Self-importance would be to only focus on yourself and no one else. A short attention span would not work out for you because you get distracted easily.
8 0
3 years ago
How does the speaker feel about traditional forms of poetry
Salsk061 [2.6K]
A speaker sometimes is not able to capture the intended details since it is affected by homophones.
7 0
3 years ago
Read 2 more answers
Write a program to read a list of exam scores given as integer percentages in the range 0-100. Display the total number of grade
Tju [1.3M]

Answer:

import java.util.Scanner;

public class Program

{

  public static void main(String [] Args)

  {

      int totalAGrades = 0, totalBGrades = 0, totalCGrades = 0, totalDGrades = 0, totalFGrades = 0, counter=0,maximum = 0, minimum = 9999, num, total = 0,smallest = 0,largest = 0;

       Scanner in = new Scanner(System.in);

       System.out.println("Enter exam percentage: ");

       System.out.println("Enter a negative examScore: ");

       int examScore = in.nextInt();

       while(examScore > 0)

       {

         counter++;

         if(examScore < 0){          

             break;}  

         else if(examScore > maximum){      

              maximum = examScore;}

         else if(examScore < minimum)   {  

              minimum = examScore;}

         

          total = total + examScore;  

     

          if(examScore <= 50 && examScore>0)

              smallest = examScore;

              if(examScore > 90 && examScore <=100)

              largest = examScore;

         

      if(examScore>=90 && examScore<=100)

          totalAGrades++;

      else if(examScore>=80 && examScore<=89)

          totalBGrades++;

      else if(examScore>=70 && examScore<=79)

          totalCGrades++;

      else if(examScore>=60 && examScore<=69)

          totalDGrades++;

      else if(examScore>=0 && examScore<=59)

          totalFGrades++;

      examScore = in.nextInt();

     

   }

      System.out.println("Total number of scores is = " + counter );

      System.out.println("Total Number of each Letter grade : " + counter);

      System.out.println("Percentage of total for each letter grade : ");

          System.out.println("Total number of A grades = "+ totalAGrades);

          System.out.println("Total number of B grades = "+ totalBGrades);

          System.out.println("Total number of C grades = "+ totalCGrades);

          System.out.println("Total number of D grades = "+ totalDGrades);

          System.out.println("Total number of F grades = "+ totalFGrades);

     

      System.out.println("Lowest exam Score is :"+smallest);

      System.out.println("Highest exam Score is :"+largest);

      System.out.println("Average exam Score = "+ (total / counter));

  }

}  

Explanation:

  • Get the exam information from user as input and run a while loop until examScore is greater than zero.
  • Use conditional statement to check the scores of students and increment the relevant grade accordingly.
  • Finally display all the information including grades and scores.
3 0
3 years ago
Felicia is a computer programmer.
dolphi86 [110]

A: SSD, HDD, CPU or RAM

Whether you go with the faster SSD or slower but larger HDD, keep in mind you may end up needing a drive large enough to run a dual boot system if you plan on coding in multiple environments. Virtualization of other operating systems is another option, but that requires a fast CPU and a large amount of RAM to work well.

B: Ram because its larger than the others, and will work better.

C: i don't really have a suggested system but here

You may appreciate the seamless experience iOS offers, the flexibility of Android or the familiarity of Windows with your everyday PC. It might take some time to acclimate to a new system, so it may be best to stick with what you know.

Please consider marking brainliest.. thx

8 0
3 years ago
Other questions:
  • Which two technologies support the building of single-page applications?
    11·1 answer
  • To play game, go inside the Grand Theft Auto V folder and right click and runGTAVLauncher as administrator.If you get any missin
    5·1 answer
  • What are the 4-bit patterns used to represent each of the characters in the string "1301"? Only represent the characters between
    14·1 answer
  • Explain how it is possible for a sequence of packets transmitted through a wide area network to arrive at their destination in a
    14·1 answer
  • Which of the following is *not* true about logging user and program actions on a computer?
    10·1 answer
  • If the list above is named list1 and is implemented as a list, whatstatement would you use to find the number ofelements?list1.s
    9·1 answer
  • Write a program to generate personalized junk mail. The program takes input both from an input file and from the keyboard.The in
    14·1 answer
  • What is the approximate boiling point
    7·1 answer
  • Identify similarities and differences of hibiscus leaves <br>​
    14·1 answer
  • Compare and discuss between electromechanical and electronic era of computer​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!