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            <news:title>Push vs Pull vs Polling vs WebSockets vs SSE Explained (System Design Guide 2026)</news:title>
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        <loc>https://gpaisa.in/articles/proxy-vs-reverse-proxy-explained-system-design-guide-2026</loc>
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            <image:caption>Learn the difference between proxy and reverse proxy with examples, diagrams, and use cases. Simple explanation for system design and backend developers</image:caption>
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        <loc>https://gpaisa.in/articles/synchronous-vs-asynchronous-communication-explained-system-design-guide-2026</loc>
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