Free Huawei H31-331 Exam Dumps Questions & Answers

In the WDM network, if the two-way OA and OSC report the optical loss alarm, which is the most likely cause?

• A.  Line fiber bidirectional interrupt
• B.  Line fiber unidirectional degradation
• C.  Line fiber one-way interruption
• D.  Line fiber bidirectional degradation

Which of the following boards may cause interruption of the existing network service during the replacement process?

• A.  AUX (OptiX OSN6800)
• B.  EFI1 (OptiX OSN8800 T32)
• C.  SC2
• D.  NS2

The following descriptions of the OSN 6800 devices are correct. (multiple choice)

• A.  The NMS can set the ID of each subrack of the OptiX OSN 6800 device.
• B.  After monitoring the 15-minute and 24-hour performance events, all performance events will be cleared.
• C.  The wavelength selection of the tunable wavelength OTU can be performed on the network management
• D.  The adjustable attenuation range of each channel of VA4 is 2~20dB

In a ring network, the ODU2 SNCP service is configured by using the tributary board and the circuit board.
When the protection switching test is performed, the service is interrupted. Which of the following reasons is not possible for the failure of the switching?

• A.  WDM service configuration error in the receiving site
• B.  Locking operation was performed during operation
• C.  Protection channel fiber degradation
• D.  Configure the protection type of the receiving site as SNC/N

Which of the following conditions does not trigger the customer side 1+1 protection automatic switching?

• A.  Hard reset of the board.
• B.  OSC_LOS
• C.  ODUk_PM_LCK
• D.  OTUk_TIM.