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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 />

Suponga que s = 2,5 × 10 8 metros/segundo, que L =<br />

100 bits, y que R = 28 kbps. Encuentre la distancia m <strong>de</strong><br />

manera que t prop = t trans .<br />

Solución: Si<br />

entonces<br />

Sustituyendo<br />

Despejando<br />

m<br />

2,5 × 10 8 metros<br />

segundo<br />

t trans = t prop<br />

m<br />

s = L R .<br />

=<br />

100 bits<br />

.<br />

28 × 10 3 bits<br />

segundo<br />

m = 893 × 10 3 metros.<br />

4.8 Ejemplos 69

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