What is three way of hand shake in networking means?

The three-way handshake is a method used in TCP/IP networking to establish a reliable connection between a client and a server. It involves three steps: first, the client sends a SYN (synchronize) packet to the server to initiate the connection; second, the server responds with a SYN-ACK (synchronize-acknowledge) packet, acknowledging the client's request; and third, the client sends an ACK (acknowledge) packet back to the server, confirming the connection. This process ensures that both parties are ready for data transmission and helps synchronize their sequence numbers.