Free Huawei H31-341_V2.5 Exam Questions

NG WDM electrical layer service single board supports compatibility mode and standard mode. Compared with compatible mode, standard mode The single board only displays the service mapping path under the channel or physical port on the network management, so the standard mode has Fewer path levels and simple operation.

Which of the following fiber types complies with the description that the dispersion at 1310 nm is 0 and the typical dispersion coefficient around 1550 nm is 17 ps/nm.km?

In the scenario of non-convergent OUT processing SDH standard signals, both A and B are WDM stations, and A station OTU The R_LOS alarm is detected on the client side of OUT, and after processing the alarm on the WDM side of OUT, in the downstream B The client side of the station detects and reports the REM_SF alarm, and station B transmits the signal to its downstream client equipment, and Report the R_LOS alarm to the client device. 

Which of the following descriptions of discrete services are correct:

Which of the following are not features of WDM network expansion?