Free Huawei H31-331 Exam Dumps Questions & Answers

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

• A.  The optical power attenuation on the service layer path OCH is too large.
• B.  The service cannot be created between ports.
• C.  The routing constraints cannot be met.
• D.  Routing resources are not available.

When configuring the electrical layer crossing, when the "slot configuration mode" is set to "manual mode", it is not necessary to set "send service time slot" and "receive service time slot".

• A.  True
• B.  False

When there is no optical path intercommunication between two or more network elements, the Ethernet port of the network element can be used to implement extended ECC communication. The NE defaults to automatically extend ECC communication. When the number of Huawei device NEs using extended ECC communication is greater than four, manual ECC communication must be used.

• A.  True
• B.  False

Which of the following statements about loopback operations is wrong?

• A.  Pay attention to the use of fixed or adjustable light decay during loopback operation
• B.  The loopback method is suitable for the range of known faults. The fault range is divided into two sections and excluded separately. The faults it can eliminate can be board failures, line faults.
• C.  When loopback operation, there is no need to pay attention to whether the dispersion compensation meets the system requirements.
• D.  Loopback operation will affect normal business. It is recommended to use when traffic is small.

The application of the FEC-enabled wavelength conversion board in the DWDM system can improve the signal-to-noise ratio.

• A.  True
• B.  False