Free H31-331 Exam Braindumps
Huawei Certified Network Professional-Building Carrier OTN Transmission Network Questions 51–55 (page: 12)

Updated On: 9-Feb-2026

Which of the following descriptions is wrong when creating an ALC link node in a single station?

  1. The "Power Detection Unit" and "Adjustable Attenuation Unit" of the first node are recommended to be set to "None".
  2. When the power detection unit is an OBU1, OBU2, or HBA board, if the ALC function is used, the "adjustable attenuation unit" must be configured.
  3. When the "adjustable attenuation unit" is a 12OAU1, 12OBU1 or 12OBU2 board, its VO port must be configured as an "adjustable attenuation unit".
  4. "Node Gain Compensation Offset" can use the default value "0.0".

Answer(s): C



To restore all data of the U2000 database, you must first shut down the U2000 server to recover.

  1. True
  2. False

Answer(s): A



When creating an electrical path, (Client, ODUK, ODUflex) may cause the route calculation to fail.
(multiple choice)

  1. The routing constraints cannot be met.
  2. Routing resources are not available.
  3. The optical power attenuation on the service layer path OCH is too large.
  4. The service cannot be created between ports.

Answer(s): A,B,D



The OptiX OSN 8800 provides eight DCM optical modules for 10km, 20km, 90km, 60km, 80km, 100km, 120km, and 190km compensation distances.

  1. True

  2. False

Answer(s): B



The inner loop retrace does not change the signal structure, and the signal that accesses the local device is directly looped back to the loopback operation of its corresponding output port before the signal processing. The inner loopback can be used to test fiber optic lines and connectors.

  1. True
  2. False

Answer(s): B



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