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Schach [20]
3 years ago
6

Suppose Client A initiates a Telnet session with Server S. At about the same time, Client B also initiates a Telnet session with

Server S. Run telnet in a terminal and capture the traffic on Wireshark. For example, open a telnet session using this command: "telnet cs537.cs.csusm.edu". What are the source and destination port numbers for the following items?
Computers and Technology
1 answer:
poizon [28]3 years ago
5 0

Answer:

An answer to this question is given below in explanation section.

Explanation:

The given question is incomplete. First, we write the complete question that is:

Suppose Client A initiates a Telnet session with Server S. At about the same time, Client B also initiates a Telnet session with Server S. Run telnet in a terminal and capture the traffic on Wireshark. For example, open a telnet session using this command: "telnet cs537.cs.csusm.edu". What are the source and destination port numbers for the following items?

  1. the segment sent from A to S.
  2. the segment sent from B to S.
  3. the segment sent from S to A.
  4. the segment sent from S to B.
  5. if A and B are different hosts, is it possible that the source port number in the segments from A to S is the same as that from B to S?
  6. how about if they are the same host?

Answers

                           Source Port Numbers               Destination Port Number

  1. A -> S                      1467                                               23
  2. B -> S                       1513                                               23
  3. S->A                         23                                                  1467
  4. S->B                         23                                                  1513
  5. Yes, it is that the source port number in the segement from A to S is the same as that from B to S. In short, there is no relationship between port numbers on different hosts
  6. no, a port number identify UNIVOCALLY a process.

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Explanation:

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Answer:

Following are the code to the given question:

For code 1:

start = int(input())#defining a start variable that takes input from the user end

end = int(input())#defining a end variable that takes input from the user end

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For code 2:

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   data = input()#defining a data variable that inputs values

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       break#use break keyword

   rev = ''#defining a string variable rev

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Explanation:

In the first code two-variable "first and end" is declared that takes input from the user end. After inputting the value if a block is used that checks start value greater than end value and use the print method that prints message.

In the else block a while loop is declared that checks start value less than equal to end value and inside the loop it prints input value and increments the start value by 5.

In the second code, a while loop runs when it's true and defines a data variable that inputs values. In the if block is used that checks data value and use break keyword.

In the next step, "rev" as a string variable is declared that uses the for loop that adds value in its variable and prints its values.

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