Which of the following is the basic requirement of the DWDM system in the light source?
When the U2000 is synchronized, the same network metadata as the U2000 is not uploaded to the U2000, and the data that exists on the U200 but does not exist on the network element is deleted.
Which of the following maintenance signals is transmitted from the downstream site to the upstream site of the OTN?
Which of the following alarm/event storage modes does U2000 support? (Multiple choice).
Hitless protection switching (HPS) provides the dual fed and selective receiving function for fiber differential protection services and aligns the end-to-end latencies of the working and protection paths, improving service reliability.
When the working PQ1 board is oversized, the device will perform and the TFS protection will be reversed. Which of the following statements about the switching process are correct? (Multiple choice).
The 1510nm optical monitoring channel can be effectively amplified after passing through EDFA.
For OSN3500, there is a slot mapping relationship between the processing board and the interface pre-processor. The processing board in slot 1 maps to the interface board in slots 19-20.
TESTED 02 Oct 2025
