This video explains the differences between TCP and UDP, two protocols used for data transport. It covers their reliability, connection establishment, sequencing, and use cases in various applications like file transfers, VoIP, and streaming video.
TCP (Transmission Control Protocol): A reliable protocol that establishes a connection before transmitting data, ensuring data arrives in order and complete. It uses a three-way handshake and handles retransmissions if data is lost. Suitable for applications requiring high reliability like file transfers.
UDP (User Datagram Protocol): An unreliable protocol that doesn't establish a connection before transmitting data. It's faster but doesn't guarantee data delivery or order. Ideal for applications where speed is prioritized over reliability, such as VoIP and streaming video.
Connection Establishment: TCP creates a connection using a three-way handshake, while UDP doesn't require connection establishment.
Sequencing: TCP sequences data packets to ensure they arrive in the correct order. UDP doesn't guarantee order.
Error Handling: TCP handles lost or corrupted packets through retransmission. UDP doesn't offer this functionality; lost packets are simply lost.
