[Q62-Q81] Verified H12-931-ENU dumps Q&As – Pass Guarantee Exam Dumps Test Engine [2022]

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Verified H12-931-ENU dumps Q&As – Pass Guarantee Exam Dumps Test Engine [2022]

H12-931-ENU dumps and 320 unique questions

Q62. 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?

The service between A and B is interrupted, and the switching alarm disappears

The services of A and B will not be affected, and the switching alarm will not disappear

The service between A and B is interrupted, and the switching alarm does not disappear

The business between A and B is not affected, and the switching alarm disappears

Q63. In the actual deployment of 1588v2, you will encounter asymmetry in the length of the transceiver fiber. What are the main solutions for fiber asymmetry in the industry? (multiple choice)

Single fiber bidirectional

The meter measures point by point

Manual measurement of ring network

Automatic measurement of ring network

Q64. What is the wavelength of the OSC channel of Huawei OTN equipment? () (multiple choice)

1550nm

1491nm

1510nm

1565nm

1511nm

Q65. PID (Photonics Integrated Device) is an optoelectronic integrated device, PID single board can realize multi-wavelength integration, 40Km without optical amplifier, 80Km without dispersion compensation ()

TRUE

FALSE

Q66. In microwave products, which of the following protection methods can enable reverse switching? (multiple choice)

1+1 HSB

1+1 FD

1+1 SD

N+1 protection

Q67. The interface board N1SF64 of OSN 7500 and the A1SF64 of OptiX 10G (Metro 5000) support different protocols, so they cannot be connected.

TRUE

FALSE

Q68. TN55TQX+TN53NQ2 network element) —–TN53NQ2+TN55TQX (B network element) networking, the network element is a synchronous system, 10GELAN MAC transparent mapping mode, ALS function is turned on, and the connection with the router is normal. At this time, change the 55TQX 10GELAN mode of A network element to BIT transparent mapping mode, then what are the new alarms of A network element 53TQX (multiple choice)

ODU2_LOFLOM

ALS_ACTIVE

REMOTE_FAULT

REM_SF

Q69. Which of the following statements about the configuration, testing and maintenance of IP functions are correct? () (multiple choice)

IPA function is only applicable to Raman amplifiers, not to ordinary amplifiers

After the IPA function is successfully activated, when the amplifier board detects LOS, the optical power of its output port becomes safe optical power. Select “Configuration/IPA Management” in the function tree of the network element manager, and you can configure IPA to start Delay value

When the fiber interruption is repaired and the IPA cannot be terminated, it may be because the IPA protection group is not configured with a “detection board”, only the auxiliary detection board is configured, and the auxiliary detection board reports an alarm that triggers IPA

The purpose of testing the IPA function is to verify that if any fiber is broken in the fiber path included in the IPA, the amplifier included in the IPA can be turned off. After the fiber is restored, the amplifier can be turned on automatically, and Power change within 0.5dB

Q70. In the SDH network, the S1 byte is used to transmit synchronization status information. Which of the following S1 byte values represents the G.811 recommended clock?

0x00

0x02

0x04

0x0b

0x0f

Q71. Regarding the OTN system network-level protection switching test, which of the following statements is correct? ()

The ODUk-SNCP protection is superimposed on the OLP protection. In order to avoid secondary switching of the SNCP protection, the delay time can be set in the SNCP protection group

The power difference between the main and backup channels of the OLP protection group is more than 3dB by default, and the alarm is reported up, and the maximum can be set to 8dB

OLP main and standby optical power abnormal threshold exceeds 5dB by default to perform switching, and the threshold range can be set -5~5

In the OTN bearer SDH multiplex section ring networking scenario, in order to avoid simultaneous switching of OLP protection and MSP protection, the delay time can be set in the MSP protection group

Q72. The main difference between SNCP and PP ring is that SNCP adopts tributary board selective reception while PP adopts cross board selective reception.

TRUE

FALSE

Q73. Hybrid MSTP devices support cross-domain clock intercommunication, and support the intercommunication of synchronous Ethernet and SDH synchronization.

TRUE

FALSE

Q74. An operator needs to configure 60 clients, 200 OptiX PTN 1900, 100 OptiX OSN 3800 (With ASON), 150 NE40E, 200 CX600 series equipment, and the access side is equipped with FTTx OLT and MDU, a total of 80,000 xDSL lines , 70,000 lines of PSTN ports, 30 OLTs and 300 MDU devices are deployed.
Regarding the description of this network, the error is:

The number of physical network elements to be managed by the network management center is 980

The number of equivalent network elements for 100 OptiX OSN 3800 (With ASON) is 350

In practice, 50% of the current network size needs to be reserved for expansion capacity

The network is a medium-scale network

Q75. The maximum dispersion tolerance of an OTU board is 800ps/nm, so on G.652 fiber, the dispersion limited distance can be roughly considered as

40KM

60KM

80KM

10KM

Q76. Which of the following is the error about the optical power commissioning?

For 10G and 2.5G systems, adjust the received optical power of the wavelength conversion board to “high 3 low 5”, which is 3dB higher than the receiving sensitivity and 5dB lower than the overload point.

Adjust the VOA (adjustable optical attenuation) in front of the optical amplifier board so that the input optical power of the board = the input single-wave nominal optical power + 10lgN, where N is the actual wave number. If it is not adjusted to the nominal value, adjust the VOA attenuation to the minimum.

Adjust the OAU gain of the optical amplifier board to make the output optical power reach the standard.

The actual gain upper threshold of an OAU is smaller than the nominal gain upper threshold, indicating that the performance of the OAU board is degraded and it is recommended to replace it.

Q77. U2000-managed dual-machine software Veritas needs to apply for a license, one for the main and standby machines, and import them after activation. The licenses for the main and standby machines are different. For the U2000 license, you also need to activate it with their own ESNs and import them separately. The ESNs of the licenses of the active and standby machines are different.

TRUE

FALSE

Q78. Synchronization means that signals maintain a certain strict specific relationship in frequency or phase, that is, their corresponding effective instants appear at the same average rate.

TRUE

FALSE

Q79. As shown in the figure, in the business configuration of the PP ring belt chain, discrete services are generated due to incomplete or incorrect configuration. In order to solve this discrete service, the service configuration needs to be supplemented. Which of the following steps are correct? (More select)