Can you explain what a handshake process means in network interaction?

The handshake process in network interaction is the initial step in establishing a connection between two nodes (for example, a client and a server). Its goal is to agree on communication parameters, verify that both parties are ready, and ensure secure data exchange.

An example is the TCP handshake (3-way handshake):

1. The client sends a SYN packet to the server (signal to start the connection).
2. The server responds with a SYN-ACK packet (acknowledgment and agreement).
3. The client sends an ACK (acknowledgment), after which the connection is considered established.

This process guarantees that both parties are ready to transmit data and have agreed on the connection parameters.