Chapter12 - CHAPTER 12 TCP Exercises 1. Common fields in...

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1 CHAPTER 12 TCP Exercises 1. Common fields in UDP and TCP header: source port number destination port number checksum Fields present in TCP header that are absent from UDP header: sequence number (for flow and error control) acknowledgment number (for flow and error control) header length (TCP has variable header length) control bits (flow and error control and connection) urgent pointer (needed for flow and error control) options and padding (for better performance) Fields present in UDP header that are absent from TCP header: total length (actually not needed) 3. The port is not listed in the transmission control block. 5. The maximum size of the TCP header is 60 bytes. The minimum size of the TCP header is 20 bytes.
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SECTION 2 7. See Figure 12.1. 9. a. The source port number is 0532 in hex and 1330 in decimal. b. The destination port number is 0017 in hex and 23 in decimal. c. The sequence number is 00000001 in hex and 1 in decimal. d. The acknowledgment number is 00000000 in hex and 0 in decimal.
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This note was uploaded on 04/26/2010 for the course CSE CS501 taught by Professor Dmathur during the Winter '10 term at National Institute of Technology, Calicut.

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Chapter12 - CHAPTER 12 TCP Exercises 1. Common fields in...

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