Click the Exhibit button. When designing a DWDM system with multiple amplified spans, a pre-amp is needed at Site B to (). (Choose three.)https://assets.asklib.com/images/image2/2018080114074365428.jpg

A . offset the OADM loss at site b B . overcome the high multiplexer loss at site a C . amplify signal levels after the high loss through Fiber Span 1 D . adjust add channels at site B to be at the same level as the passthrough channels E . ensure that the per channel power is higher than the minimum needed for the post-amp at Site

时间:2022-10-22 21:11:12 所属题库:CCNP(642-311)题库

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