The Difference Between TCP vs UDP

Summary:

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are two communication protocols used in computer networks for data transmission. TCP is a connection-oriented protocol, necessitating an established connection between the client and server before transmitting data. It ensures data delivery to the destination in the correct order and offers error checking and retransmission of lost packets. In contrast, UDP is connectionless, not requiring a pre-established connection before transmitting data. However, it does not guarantee data delivery to the destination and lacks error checking and retransmission mechanisms, potentially resulting in lost packets. TCP’s extensive error checking and acknowledgment of data make it slower compared to UDP, which is faster due to its connectionless nature and fewer overheads. TCP is commonly used for applications like HTTP, FTP, and SMTP, where data integrity and reliable delivery are crucial. On the other hand, UDP finds applications in video streaming, online gaming, VoIP, and real-time communication, where speed and low latency are prioritized, and some data loss can be tolerated. The choice between TCP and UDP depends on the application’s specific requirements and the importance of data integrity and speed in data transmission.

Excerpt:

The Difference Between TCP vs UDP

Transmission Control Protocol (TCP) vs User Datagram Protocol (UDP)

What is TCP?

Transmission Control Protocol (TCP) is a connection-oriented protocol, meaning data can be transmitted when a connection is established between client and server.  TCP has built-in systems to check errors and ensure data delivery in the order it was sent.  Examples include Hyper Text Transfer Protocol (HTTP), Transfer of files or FTP, Text communication, etc.

What is UDP?

User Datagram Protocol (UDP) is a connectionless protocol that avoids error checks and retransmission of missing data. UDP doesn’t require to establish a connection before transmitting data. Examples include Video Streaming, Online games, Voice Over IP (VoIP),  etc.