Please explain precisely TCP

TCP 是传输控制协议，它是一种面向连接的协议，用于在网络上可靠地传输数据。TCP 通过三次握手建立连接，然后在数据传输过程中使用序列号和确认号来保证数据的可靠性和完整性。它还具有流量控制和拥塞控制的功能，可以根据网络状况自适应地调整传输速率，以保证网络的稳定性和效率。

相关问题

Explain precisely following abbreviations: UDP, FDM, ABR,EFCI,AIMD,MSS

UDP: User Datagram Protocol - A communication protocol that allows for the transmission of data over the internet. Unlike TCP, it does not guarantee the delivery of data and does not establish a connection between the sender and receiver.

FDM: Frequency Division Multiplexing - A method of transmitting multiple signals over a single communication channel by dividing the channel into multiple frequency bands, each of which is used to transmit a separate signal.

ABR: Available Bit Rate - A type of service in ATM (Asynchronous Transfer Mode) networks that allows for the dynamic allocation of bandwidth based on network congestion. ABR service aims to minimize delay and maximize network efficiency.

EFCI: Explicit Forward Congestion Indication - A mechanism used in ATM networks to signal congestion to network users. When network congestion occurs, the network sends EFCI signals to inform users to reduce their transmission rates.

AIMD: Additive Increase Multiplicative Decrease - A congestion control algorithm used in TCP (Transmission Control Protocol) networks to regulate network traffic. It increases the transmission rate until congestion occurs and then decreases the rate exponentially to avoid network congestion.

MSS: Maximum Segment Size - The largest amount of data that can be transmitted in a single TCP segment. It is determined by the maximum transmission unit (MTU) of the network, which is the largest size of data that can be transmitted over the network without fragmentation.