Which protocol provides reliable delivery of data?

The protocol that provides reliable delivery of data is TCP, which stands for Transmission Control Protocol. TCP ensures that data sent over the network arrives at its destination accurately and in the correct order. It achieves this reliability through several mechanisms:

1. Connection-Oriented Communication: TCP establishes a connection between the sender and receiver before data transmission begins. This setup phase allows both parties to agree on parameters such as window size and sequence numbers, which facilitate organized data transfer.

2. Error Checking: TCP includes a built-in mechanism for error checking with checksums. This function verifies the integrity of the data during transit, allowing any corrupt packets to be identified and retransmitted if necessary.

3. Acknowledgments: When a sender transmits data, TCP requires the recipient to send back acknowledgments for received packets. If the sender does not receive an acknowledgment within a specific time frame, it understands that the packet was lost or corrupted and will resend that data.

4. Flow Control: TCP uses a flow control mechanism, allowing it to adjust the rate of data transmission based on the receiver’s capacity. This prevents data overflow and ensures that the receiving device can handle the incoming data stream smoothly.

5. Segmentation: TCP breaks larger