which are two valid TCP connection states (pick 2) is the gist of the question.
A . SYN-RCVD
B . Closed
C . SYN-WAIT
D . RCVD
E . SENT
Answer: A,B
Explanation:
TCP Finite State Machine (FSM) States, Events and Transitions + CLOSED: This is the default state that each connection starts in before the process of establishing it begins.
The state is called "fictional" in the standard.
+ LISTEN
+ SYN-SENT
+ SYN-RECEIVED: The device has both received a SYN (connection request) from its partner and sent its own SYN. It is now waiting for an ACK to its SYN to finish connection setup.
+ ESTABLISHED
+ CLOSE-WAIT
+ LAST-ACK
+ FIN-WAIT-1
+ FIN-WAIT-2
+ CLOSING
+ TIME-WAIT
Source: http://tcpipguide.com/free/t_TCPOperationalOverviewandtheTCPFiniteStateMachineF2.htm