What does "incomplete" mean?

A session in the Traffic log is reporting the application as "incomplete”

What does "incomplete" mean?
A . The three-way TCP handshake did notcomplete.
B. Data was received but wan instantly discarded because of a Deny policy was applied before App ID could be applied.
C. The three-way TCP handshake was observed, but the application could not be identified.
D. The traffic is coming across UDP, and the application could not be identified.

View Answer

Answer: A