Do you have experience working with the TCP protocol for network communication?

Yes, there is experience working with the TCP protocol. TCP (Transmission Control Protocol) provides reliable, connection-oriented data transfer between two nodes in a network. In practice, it is used to create client-server applications where guaranteeing delivery and message order is important.

Example in Python for a simple TCP server and client:

# TCP server
import socket

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(('localhost', 12345))
server.listen(1)
conn, addr = server.accept()
print('Connected by', addr)
data = conn.recv(1024)
conn.sendall(data)  # echo
conn.close()

# TCP client
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect(('localhost', 12345))
client.sendall(b'Hello TCP')
data = client.recv(1024)
print('Received', data)
client.close()

This approach allows organizing reliable data exchange, controlling message order and integrity.