Reference no: EM133218019
Question 1. Start the "TCP/IP" (reliable connection simulator) applet.
Question 2. In the textfield labeled "Your message:", type the following, "Computer networking is essential in our world today." Then press the button "Send a message."
Question 3. Watch the entire sequence of packets that are sent for the sample message. How many DAT packets were sent? How many ACK packets were sent?
Question 4. If each character or blank in a packet header counts for one character, and all DAT packets except the last carry 10 characters (including the blanks), and ACK packets have no data characters (though they do have a header), count up how many characters were sent in total.
Question 5. There are 52 characters in the above message, including blanks and punctuation. Subtract 52 from the total number of characters sent in both directions in all packets. Divide this number by the total number of characters to get the overhead (those characters which are not really data but yet you have to transmit them), represented as a percentage.
Question 6. Imagine that you have a million-character message to send, perhaps a large file. How many characters in total (and to your best estimate) would be sent in all packets necessary to move it from node 0 to node 1?
Question 7. What would be an obvious way to decrease the overhead?
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