TCP (Transmission Control Protocol) ensures transmission reliability through the following mechanisms:
1. Acknowledgment: TCP uses a mechanism where the receiver sends acknowledgments to the sender for every successfully received packet. This ensures that the sender knows which packets have been received and which ones need to be retransmitted.
1. Retransmission: If a packet is lost or corrupted during transmission, TCP will automatically retransmit it until it is successfully received by the receiver. This ensures that all packets are received in the correct order and no data is lost.
1. Flow Control: TCP has a flow control mechanism that regulates the amount of data that can be sent at a given time to avoid congestion and prevent packet loss. This ensures that the network is not overloaded and all packets are received.
1. Error Detection and Correction: TCP uses a checksum mechanism to detect errors in the transmitted data. If any errors are detected, TCP will request the sender to retransmit the data. Additionally, TCP can use selective acknowledgments to request specific packets to be retransmitted, rather than the entire data stream.
Overall, these mechanisms ensure that TCP is a reliable and robust protocol for transmitting data over a network.
