What is the correct protocol sequence when opening a TCP session?
A.
SYN – ACK – SYN ACK – DATA
B.
SYN – SYN ACK – ACK – DATA
C.
SYN – SYN RPLY – ACK – ACK RPLY – DATA
D.
SYN – ACK – DATA
Explanation:
: This is the correct order of a TCP session, the user send a “SYN” packet to the server (ask the
server for a connection), the server sends to the user a “SYN/ACK” packet (telling the client that
he is going to open a port for the connection and giving his ACK), then the user send the server an
ACK (to complete the negotiation of the session), once this 3 way handshake process is done, the
two sides can begin the exchange of data.