Q: What is the summary of differences between TCP and UDP?

A: The key differences are:

1. Connection: TCP is a connection-oriented protocol, meaning a connection must be established before data is sent. UDP is a connectionless protocol.
2. Reliability: TCP provides reliable data transfer through acknowledgements and retransmissions. UDP does not guarantee delivery.
3. Speed: UDP is faster than TCP because it lacks the overhead of connection setup and reliability mechanisms.
4. Bandwidth: TCP has built-in congestion control to dynamically adjust its transmission rate based on network conditions. UDP does not have this feature.
5. Use Cases: TCP is used for applications that require reliable, in-order delivery, such as email, file transfer, and web browsing. UDP is used for speed-critical and real-time applications, such as video streaming, gaming, and VoIP.