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
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
http://tcpipguide.com/free/t_TCPOperationalOverviewandtheTCPFiniteStateMachineF-2.htm