Click the Exhibit button. Within an ONS 15454, you are provisioning a circuit on an unprotected UPSR ring. In the exhibit, which two must you configure?（） (Choose two.)
A. revertive
B. circuit type
C. circuit size
D. bidirectional
E. protected drops
F. switch on PDI-P
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A.225 ft
B.450 ft
C.655 ft
D.900 ft
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What are two important considerations when using 2- or 4-channel 15216 OADMs?（） (Choose two.)
If the power is 0 dBm, what is the power in mW?（）
Which timing mode is appropriate for a SONET NE that is adjacent to a SONET NE using BITS-1 timing source?（）
What three in combination are factors that can cause four-wave mixing in fiber-optic cables? （）(Choose three.)
Click the Exhibit button. When designing a DWDM system with multiple amplified spans, a pre-amp is needed at Site B to （）. (Choose three.)
What are three relevant design considerations when using the 15216 EDFA? （）(Choose three.)
What is the phenomenon called where different wavelengths of light travel at different speeds?（）
On an ONS 15454 node you can tunnel an （）.
The dispersion of a non-zero dispersion shifted fiber is 6 ps/nm*km at 1550 nm and 10 ps/nm*km at 1610 nm. What is the minimum dispersion compensation required if an L-Band DWDM signal travels through 200 km of fiber and has a dispersion tolerance of 1800 ps/nm?（）
The ONS 15216 is a 32-channel system. The ONS 15216 OADMs are capable of adding and dropping one, two, or four channels. How are the OADMs provisioned to add and drop specific channels?（）