[&] The TCP 3-way handshake serves which of the following purposes? (Select two answers)
- Application run-time determination
- Delay variable calculation
- Determination of maximum transmission time
- Determination of initial sequence numbers -- Correct
- Initial contact and proof-of-existence -- Correct

[&] What kinds of TCP connections require an initial TCP 3-Way handshake? (Select the best answer)
- Only connections that are time-sensitive in nature.
- All TCP connections must be preceded by a 3-way handshake. -- Correct
- Only connections to TCP hosts on your own, local network segment.
- Only connections to TCP hosts on remote network segments.

[&] Which of the following is a true statement about TCP Passive Opens? (Select the best answer)
- Typically started on TCP servers running well-known TCP applications. -- Correct
- A TCB containing full socket information must be created prior to a TCP Passive Open.
- Triggered by receipt of a TCP SYN
- Typically started on TCP clients running well-known TCP applications.

[&] If capturing TCP segments within a packet capture program (like Wireshark) what would indicate that the segment you are viewing is the very first segment in the start of a TCP 3-way handshake? (Select two answers)
- A segment in which the only control flag that is set is the SYN flag. -- Correct
- A segment that does not have the FIN control flag set.
- A segment in which the SYN control flag is not set.
- A segment in which the only control flag that is set is the START flag.
- A segment that does not have the ACK control flag set. -- Correct