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Huawei H12-931-ENU Exam Syllabus Topics:

Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. Before configuring SOM, the physical fiber connection from OMCA to the optical amplifier board must be completed, and the logical connection fiber from OMCA to the optical amplifier board does not affect the OMS path generation, so it does not affect the configuration of SOM.

A) TRUE
B) FALSE

2. When planning AM, you need to consider the priority planning of E1. Which of the following options are the planning principles of E1 priority (multiple choice)

A) The priority of the E1 service has nothing to do with the time slot number of the IF board it occupies, but the priority is specified when the cross-connection of the E1 service is configured. There are two types of E1 priority: high and low.
B) The E1 priority function is mainly used in the scenario of Hybrid microwave transmission IMA service. At this time, the guaranteed E1 capacity should be equal to the E1 capacity required by IMA to transmit high-priority services; the full-capacity E1 capacity should be equal to the E1 capacity used by IMA.
C) When the E1 priority function is enabled, E1 service bandwidth under full capacity ≤ full capacity service bandwidth-guaranteed capacity service bandwidth + E1 service bandwidth under guaranteed capacity.
D) The priority set when an E1 service passes through a multi-hop microwave link can be different.

3. When configuring the Ethernet EPLAN service, VB will be created on all the sites above and below the service to realize the function of Layer 2 switching.

A) TRUE
B) FALSE

4. Which of the following statements about the ALC function and configuration principles of the OTN system is correct? () (multiple choice)

A) The "working mode" of the OA board and RAU1/RAU2 board must be configured as "gain lock", if it is configured in other modes and ALC is configured, the ALC will not be adjusted
B) The detection and reference unit of the first node cannot use the same optical port of the same board
C) The ALC function can automatically adjust the output optical power of the amplifier in which the line attenuation changes. Except for the first site, other sites must be equipped with power detection units
D) It is recommended that the number of network elements in the ALC link is less than 20, otherwise the ALC adjustment may time out and cause failure
E) Each ALC link has a unique ID, and ALC nodes can belong to different DCN subnets
F) If there are two cascaded OA boards in the node, the first node only configures the second OA board as the reference unit, and do not deploy the power detection unit

5. Regarding the OSNR test of the OTN system, which of the following statements is correct? () (multiple choice)

A) The 40G and 100G wavelengths overlap due to the signal spectrum, and the OSNR value tested by the traditional OSA test method is low
B) When using OSA to test OSNR, because the noise in the signal band cannot be directly tested, the out-of-band noise interpolation method is adopted to calculate the noise in the band
C) OptiX OSN8800/6800 equipment MCA online test 100G wavelength OSNR also uses the shutdown method
D) After the wavelength signal passes through a filter device such as D40, the noise power between channels will be reduced, so the OSNR value of the traditional OSA test is higher
E) The integral method test OSNR is also called the turn-off method, and the channel business will be interrupted during the test. And in the case of a small number of waves, the OSNR value measured by the integral method has a certain deviation from the true value
F) The out-of-band noise interpolation method refers to inserting the noise of the instrument to replace the actual noise of the system

Solutions: