![]() ![]() It guarantees that the system sends only ordered, non-duplicated, and complete information to the top-layer application. TCP is a secure information transfer protocol because of its acknowledgments. UDP is generally used on protocols where a few lost datagrams don’t matter. This means TCP tracks all transmitted data and usually requires acknowledgment per byte. TCP is a linked protocol, while UDP is connection-free.TCP assigns an acknowledgment number to each segment, whereas UDP does not use an acknowledgment number for datagrams.Since there is no window mechanism in UDP, it does not support the retransmission of the datagram. In TCP, retransmission of the segment occurs through the window mechanism.TCP provides reliable services, while UDP does not offer reliable services.TCP provides a flow control service to handle the receiving data’s overflow, while UDP does not provide a flow control service.While UDP does not use sequence numbers to number the packets, it isn’t easy. So that at the receiver site, data can be collected sequentially using sequence numbers. TCP uses sequence numbers for numbering the packets during the transmission of data.To transfer data, TCP must establish a connection with other hosts. One of the main key differences between TCP and UDP is TCP is connection-oriented, and UDP is connectionless.Let us discuss some of the major key differences between TCP and UDP: TCP provides different features like sequence number, flow control, error control, acknowledgment number, congestion control, etc., to ensure that other activities cannot affect the delivered packet. TCP delivers data or messages in the form of packets. It is an intermediary between the application program and network operations as it lies between the application and network layers. The transmission control protocol shows the relationship between other protocols in the TCP/IP protocol. TCP is a connection-oriented protocol, i.e., it provides a process to process (end-to-end) communications. TCP stands for Transmission Control Protocol. TCP monitors and tracks error packages to prevent data loss or corruption. It retrieves data and sends back lost data. ![]() The receiver expects to receive data transmitted via a TCP protocol. Until transmitting data, UDP does not create a connection. TCP links the transmitter to the receiver until data can be transmitted. TCP is link-oriented, and UDP is connection-free. The following article provides an outline for TCP vs UDP. ![]()
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