8 Popular Network Protocols

Network protocols are the key to transferring data between two systems in a network.

1 - FTP (File Transfer Protocol) Uses separate control and data channels to upload and download files between a client and server. 2 - TCP (Transmission Control Protocol) Establishes a reliable connection using a 3-way handshake (SYN, SYN+ACK, ACK) for accurate data delivery. 3 - UDP (User Datagram Protocol) Sends lightweight, connectionless packets (requests and responses) with minimal latency. Ideal for fast transmissions. 4 - HTTP (HyperText Transfer Protocol) Uses TCP to request and receive web resources (HTML, images) through HTTP requests and responses. 5 - HTTP/3 (QUIC) Built on top of UDP, it enables faster and more reliable connections by multiplexing data streams and reducing latency. 6 - HTTPS (Secure HTTP) Secures HTTP with encryption using public and session keys over a TCP connection, thereby protecting web data. 7 - SMTP (Simple Mail Transfer Protocol) Transfer emails from a sender to a recipient through an SMTP server. It is commonly used for email delivery. 8 - WebSocket Upgrades an HTTP connection to a full-duplex channel for real-time, bidirectional communication like live chats.

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