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(c) If a law requires a record to be in writing, an electronic record satisfies the law

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[ 3 ] [ 4 ] If the client supports keep-alive, it adds an additional header to the request: Connection: keep-alive When the server receives this request and generates a response, if it supports keep-alive then it also adds the same above header to the response

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[ 4 ] If they express much more than this, they are usually considered to be a hardware description language such as Verilog or VHDL , or one of several languages specifically designed for input to simulators or hardware compilers (such as SPICE analog simulation netlists)

com; frame-ancestors 'self'; child-src 'self' blob: tube

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If notability cannot be shown, the article is likely to be merged , redirected , or deleted

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For example, a web server can add threads if numerous web page requests come in and can remove threads when those requests taper down

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1 200 OK Date: Thu, 02 Jul 2026 16:53:48 GMT Content-Type: text/html; charset=utf-8 Vary: X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, Sec-Fetch-Site,Accept-Encoding, Accept, X-Requested-With ETag: W/"3c1b1e9e1490fb726e22e11ab6788493" Cache-Control: max-age=0, private, must-revalidate Strict

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A user's client provides presence information (presence state) via a network connection to a presence service , which is stored in what constitutes their personal availability record (called a presentity ) and can be made available for distribution to other users (called watchers ) to convey their availability for

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