The Internet is based upon a networking protocol called IPv4, which is the underlying basis for both TCP (used by HTTP and chat applications) and UDP (used for video and audio applications).

互联网是基于名为IPv4的网络协议的，该协议是TCP (HTTP及聊天应用使用)与UDP(视频与音频应用使用)的基石。

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UDP is a more efficient (but less reliable) way to send video and audio data over the Internet that reduces the penalties associated with missing, dropped, or out of order packets.

UDP是Internet上一种更有效传送音频视频的方法，虽然会有一些丢包，错包。

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It is used by Transport Layer protocols of the Internet protocol Suite, such as Transmission Control protocol (TCP) and User Datagram protocol (UDP).

端口被用于互联网协议集中的传输层协议，就像传输控制协议(TCP)和用户数据报协议(udp)。

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By using an internet protocol called UDP, it was able to aggressively send these scans without requiring an answer from the potential victim.

BBC: Aggressive net bug makes history