Understanding the Difference Between UDP and TCP: Transport Layer Protocols in TCP/IP

UDP and TCP belong to which layer of the TCP/IP protocol?

UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) belong to the Transport Layer of the TCP/IP protocol.

The Transport Layer is responsible for establishing a connection between two hosts and for the reliable and orderly transfer of data between them. It provides end-to-end communication services for applications running on different hosts.

TCP is a connection-oriented protocol that ensures reliable and ordered delivery of data. It sets up a connection, breaks the data into smaller packets, and provides error checking and retransmission of lost packets.

UDP, on the other hand, is a connectionless protocol that does not establish a connection before sending data. It is faster but less reliable since it does not guarantee the delivery or order of packets. It is commonly used for real-time applications, such as streaming media or online gaming, where a small amount of packet loss is acceptable.

Both UDP and TCP use IP (Internet Protocol) as the underlying protocol for addressing and routing packets over the network. Therefore, they are often referred to as UDP/IP and TCP/IP.

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