Which one of the following is one of the 3-step-communication in networking ?
a. tcp-Syn
b. tcp-Seen
c. tcp-Sink
d. tcp-Sing
a is the correct answer as The TCP -SYN is the first packet to be sent in a TCP 3-way handshake when a client wants establish a communication with a server. When the server receives the SYN it's now aware that a client wants to start communication with it.
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