Have you had experience working with the TCP protocol in your projects?

Yes, experience with the TCP protocol is usually associated with creating network applications where establishing a reliable connection between the client and server is important.

TCP (Transmission Control Protocol) provides guaranteed data delivery in the correct order. In C/C++ projects, sockets are often used to work with TCP:

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <cstring>

int main() {
    int sock = socket(AF_INET, SOCK_STREAM, 0);
    sockaddr_in addr{};
    addr.sin_family = AF_INET;
    addr.sin_port = htons(8080);
    inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr);

    connect(sock, (sockaddr*)&addr, sizeof(addr));
    const char* msg = "Hello TCP Server";
    send(sock, msg, strlen(msg), 0);
    close(sock);
    return 0;
}

This code establishes a TCP connection with a server and sends data.