TCP and UDP

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are two different communication protocols used for data transmission over the internet. They differ in functionality: 1. Connection Management: TCP is connection-oriented, requiring a connection to be established before communication begins. Once established, data transmission occurs, followed by connection termination. UDP, on the other hand, is connectionless and does not require connection establishment. Data packets are sent directly without any connection management. 2. Reliability: TCP detects lost or corrupted packets during transmission and performs retransmission, ensuring reliable communication. UDP provides no such reliability mechanisms, and lost or corrupted packets are not retransmitted. 3. Sequencing: TCP ensures that transmitted data packets are received in sequential order, guaranteeing that packets arrive at the receiver in the same order as sent. UDP does not provide such sequencing guarantees. 4. Speed: UDP is generally faster than TCP because it does not involve the overhead of connection establishment and reliability mechanisms. TCP requires additional processing for connection setup and reliability, making it slower. In summary, TCP provides reliability and sequential communication, while UDP offers speed and lower processing overhead. The choice between them depends on the specific requirements of the application.