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Redes de Computadoras

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<strong>Re<strong>de</strong>s</strong> <strong>de</strong> <strong>Computadoras</strong>, 2007/08<br />

Los servidores <strong>de</strong> nombres se organizan jerárquicamente. Dependiendo<br />

<strong>de</strong>l nivel en que se encuentran hablamos <strong>de</strong> tres tipos: (1) servidores<br />

autorizados (authoritative), (2) servidores <strong>de</strong> dominio <strong>de</strong>l alto nivel<br />

(top-level domain) y (3) servidores raíz (root):<br />

Para aumentar la resistencia a errores, en cada dominio suelen existir<br />

varios servidores <strong>de</strong> nombres.<br />

8.4 Arquitectura <strong>de</strong>l DNS 146

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