014.01.42.10. How does UDP handle error detection, and why might some applications choose UDP over TCP, especially in scenarios where speed is crucial?
UDP has error detection for the data inside a packet, a host can detect if a packet gets mangled, but it doesn't have to do anything about it. Some applications choose UDP over TCP, as they don't want the TCP overhead and want their messages to be sent as quicly as possible, because they consider that the connection between two hosts is reliable. For e.g.:- video chat.
UDP incorporates error detection for the data inside a packet, allowing a host to detect if a packet gets mangled, but it does not provide error correction. Some applications choose UDP over TCP, particularly in scenarios where speed is crucial and the application can tolerate occasional data loss. This preference arises because UDP avoids the overhead associated with TCP, such as connection establishment and error correction.
For example, in real-time applications like video chat, where rapid message delivery is prioritized over perfect reliability, UDP is often chosen for its speed and efficiency.
