试题详情
- 多项选择题Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?（）
A、optical technology for transmitting up to 32 channels over multiple fiber strands
B、optical technology for transmitting up to 16 channels over multiple fiber strands
C、a WDM system that is compatible with EDFA technology
D、a technology for transmitting more closely packed optical signals using more sophisticated transceiver designs than CWDM .
- C,D
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