Answer
Node maintains persistent connections, processes messages as streams, and uses buffers efficiently. Its event-driven sockets allow tens of thousands of connections with minimal overhead.
Quick Answer
For high-throughput TCP/WebSocket: use Node.js clustering (one worker per CPU core), tune the OS TCP backlog and socket buffer sizes, use binary protocols over JSON where possible, disable Nagle's algorithm (socket.setNoDelay(true)) for low-latency, and stream data instead of buffering. Libraries like uWebSockets.js are highly optimized for this.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ