Final answer:
The length of the TCP header is 20 bytes, and the type of the segment requires interpreting the flags in the TCP header. To determine the window size, convert the hexadecimal value to decimal.
Step-by-step explanation:
The student is asking about details from a TCP segment header, specifically the header length, the type of the segment, and the window size. The provided sequence looks like a hexadecimal representation of a TCP header. For the header length, you look at the first 4 bits after the source port (which is the first set), which in this case is '5'.
Since TCP header length is measured in 32-bit words, you multiply by 4 to get the length in bytes, which is 20 bytes here. The 'type of the segment', more commonly known as the TCP segment type is indicated by the flags, which are the 9th to 12th hex digits (207F in this case).
To determine the exact flag, each hex digit should be converted to a binary bit string and then interpreted. The window size is indicated by the 15th and 16th hex digits (17FF), which should also be converted from hexadecimal to decimal.