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<p><a href="page.php?w=computer_programming">computer programming</a>, the most common usage of the term is in the context of message protocols, to differentiate the <a href="page.php?w=protocol_overhead">protocol overhead</a> from the actual data. For example, a <a href="page.php?w=JSON">JSON</a> <a href="page.php?w=web_service">web service</a> response might be: { "data": { "message": "Hello, world!" } }The string Hello, world! is the payload of JSON message, while the rest is protocol overhead.</p>

<p><big>Security</big></p>
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