Free Huawei H31-331 Exam Dumps Questions & Answers

When the IPA function is configured, when multiple auxiliary detection boards are configured, the detection board and all the auxiliary detection boards detect signal anomalies at the same time (if there are alarms such as MUT_LOS/R_LOS/R_LOF/K_LOC/OSC_RDI), the fiber is considered to be broken; The auxiliary detection board and the detection board are all restored to normal, and the fiber recovery is considered.

• A.  False
• B.  True

Monochromatic light does not produce dispersion.

• A.  False
• B.  True

The method of increasing the signal-to-noise ratio is to increase the optical power, so the optical power has a high signal-to-noise ratio.

• A.  False
• B.  True

When debugging the WDM system, it is mainly to ensure the flatness of the power at the end and the flatness of the signal-to-noise ratio.

• A.  False
• B.  True

What are the main methods for suppressing nonlinear effects in the WDM system? (multiple choice)

• A.  Advanced light source technology
• B.  Good dispersion management
• C.  Control signal optical power
• D.  Improve the optical power of the transmitter signal
• E.  Use large effective area fiber as the transmission medium