Answer Posted / ganesh dhakchavle

DTE : Data Terminal Equipment
DCE : Data Circuit-Terminating Equipment

The equipments connected on a serial link need to have
exactly the same transmission speeds otherwise the link will
flap (up, down, up, down, ...). However the internal clock
of the equipments have probably not exactly the same speed
(because they use quartz that are not perfect, these quartz
use the local power frequency which wont be necessary the
same, etc). As they don't have the same clock speed, they
must find a way to be synchronized... The standards have
defined that DCE will give the clocking to DTE.

Usually, DCE equipments are provider equipments (because
they use the same clock for their entire network or at least
for a great part) and DTE equipments are customer equipments.

Give some benefits of LAN switching.

1306

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1065

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1043

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1068

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1099

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1224

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1142

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1158

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1936

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1123

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1165

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1134

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3668

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1099

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1071

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