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Huawei H12-931-ENU Exam Syllabus Topics:

Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. The ring network of the OSN6800 equipment group was newly opened, and ODU1-SNCP/N protection was enabled. The engineer reported that a switch occurred one day and has not been restored, but there is no problem with the optical cable. There is an ODU_SNCP_PS alarm on the corresponding ND2 optical port. The possible reasons are:

A) The business configuration is wrong, or there is redundant business crossing at the business source and sink;
B) There is a minor alarm ODU1_PM_LCK on the relevant circuit board;
C) The PM overhead of the related circuit board is set to "LCK Insert" as enable
D) Related circuit board failure;

2. Four network elements A, B, C, and D form an SNCP ring, and there are a large number of PDH services between A and B.
One day, the fiber between A and B was interrupted.
In order to eliminate the R-LOS alarm on the network management system, an engineer self-looped the optical ports at both ends of the interrupted fiber. After 10 minutes by default, what will happen?

A) The service between A and B is interrupted, and the switching alarm does not disappear
B) The services of A and B will not be affected, and the switching alarm will not disappear
C) The business between A and B is not affected, and the switching alarm disappears
D) The service between A and B is interrupted, and the switching alarm disappears

3. When deploying QoS, where the complex classification of data flows is usually deployed in the network

A) Convergence layer
B) Core layer
C) Edge access layer

4. What are the main modules of Huawei RTN 900 series equipment? (multiple choice)

A) IF cable
B) ODU
C) GPS
D) Antenna
E) IDU

5. The C-band 40-wave system is transformed into a C-band 80-wave system. The correct description is (multiple choice)

A) Unprotected networking operation process will interrupt the original business
B) Need to re-adjust the light emission power
C) There is no change in the optical power of the OTU WDM side
D) The original business signal-to-noise ratio remains unchanged after operation

Solutions: