What is one consequence of using Transfer Control Protocol (TCP)?

The consequence of using Transfer Control Protocol (TCP) that stands out is the significant delays that can arise due to retransmission. TCP is designed to provide reliable communication over a network by ensuring that data packets are delivered accurately and in order. To achieve this reliability, TCP employs mechanisms such as acknowledgments and retransmissions. If a packet is lost or arrives out of order, TCP will detect the issue and retransmit the affected packets.

This process of retransmission can introduce significant delays, especially in networks with high latency or congestion. While the reliability that TCP offers is crucial for many applications, such as file transfers and web browsing, it can also slow down the overall data transfer rate if packet loss occurs frequently, leading to an increase in the time it takes for data to reach its destination. Therefore, the need for retransmission is a defining characteristic of TCP that can negatively impact the speed of communication.