Question: What is a major difference when comparing Dense Wavelength Division Multiplexing ( DWDM ) to CWDM ? ###answer### DWDM requires less precise lasers than CWDM

What is a major difference when comparing Dense Wavelength Division Multiplexing (DWDM) to CWDM?
###answer###
DWDM requires less precise lasers than CWDM.
DWDM supports fewer channels than CWDM.
DWDM provisions greater numbers of channels with much less spacing between each channel.
DWDM is typically used for shorter distance transmissions than CWDM.

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