protocols

4 articles · All tags

• TCP vs UDP: Differences, Use Cases, and When to Use Each
  TCP delivers data reliably and in order using handshakes and retransmission; UDP sends fast, connectionless datagrams. Compare the two and learn when each fits.
• How Email Works
  How email travels from sender to inbox — SMTP delivery, IMAP retrieval, DNS mail routing, message headers, spam filtering, and authentication standards.
• HTTP and HTTPS
  The request–response protocol that powers the World Wide Web, and its encrypted variant secured by TLS.
• TCP Three-Way Handshake
  The three-message exchange TCP uses to open a reliable connection and synchronize sequence numbers between two hosts.