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8.10. The TCP uses three-way handshaking mechanism to establish a connection. Consider the following timeline chart for three-way handshaking mechanism. Assume that “1” represents the “SYN” flag is set “2” represents the “ACK” flag is set, “3” represents both the “SYN” and “ACK” flags are set. “4” represents the “FIN” flag is set “5” represents the “RESET” flag is set Then for this timeline chart, we have TCP 使用三向交握機制來建立一條連線。考慮以下三向交握機制的時間軸圖。假定 “1” 代表 “SYN” 旗標設成1 “2” 代表 “ACK” 旗標設成1 “3” 代表 “SYN” 與 “ACK” 旗標皆設成1 “4” 代表 “FIN” 旗標設成1 “5” 代表 “RESET” 旗標設成1 請問此時間軸圖上 a,b,c,d,e 的值分別為何 ? (請填入一整數)
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8.11. Consider the following timeline chart for closing a TCP connection, starts from the client. Assume that “1” represents the “SYN” flag is set “2” represents the “ACK” flag is set, “3” represents both the “SYN” and “ACK” flags are set. “4” represents the “FIN” flag is set “5” represents the “RESET” flag is set Then for this timeline chart, we have 考慮以下由client端發起中止一條TCP 連線的時間軸圖。假設 “1” 代表 “SYN” 旗標設成1 “2” 代表 “ACK” 旗標設成1 “3” 代表 “SYN”與“ACK”旗標皆設成1 “4” 代表 “FIN” 旗標設成1 “5” 代表 “RESET” 旗標設成1 請問此時間軸圖上 a,b,c,d的值分別為何 ? (請填入一整數)
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8.12. Consider the following TCP client state diagram. Assume that “1” represents the “receive ACK and send nothing” “2” represents the “send SYN” , “3” represents the “receive SYN/ACK and send ACK” “4” represents the “wait 30 seconds” “5” represents the “receive FIN and send ACK” “6” represents the “send nothing” “7” represents the “send FIN” Then for this TCP client state diagram, we have
考慮以下TCP client 狀態圖。假設 “1” 代表 “收到ACK 並不發送任何訊息”, “2” 代表 “發送SYN”, “3” 代表 “收到SYN/ACK 與發送ACK” “4” 代表 “等待30 秒” “5” 代表 “收到FIN 並發送ACK” “6” 代表 “不發送任何訊息” “7” 代表 “發送FIN” 請問此狀態圖上 a,b,c,d,e,f的值分別為何 ? (請填入一整數)
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