Huawei Huawei Certifications H13-341 Questions & Answers

• Question 21:

  Which of the following statements about the line fiber quality monitoring performance parameters is wrong?

  A. The pulse width of emitted optical pulses varies according to monitoring modes, and affects the detection distance and measurement precision. A greater pulse width provides a larger dynamic range, longer detection distance and better measurement precision.

  B. When the pulse width increases, the light emitting time increases and consequently a larger energy is obtained. This means that a larger dynamic range can be acquired but also larger dead zones will result.

  C. Measurement is performed multiple times within the detection time. The average value is obtained based on the measurement result to improve the measurement precision. The actual duration from the time when a detection event starts to the time when the detection results are returned will be longer than the Detection time.

  D. The total fiber loss will affect the detection distance and dynamic range is fixed for the same detection mode. Therefore, a larger total fiber loss indicates a smaller detection distance.

  Correct Answer: A

• Question 22:

  The OD system monitors the main optical path performance in each optical multiplexing section (OMS), which of the following items are monitored?

  A. whether the line loss exceeds the design end of life (EOL) value

  B. whether a fiber cut occurs on the main optical path.

  C. whether the optical power of the transmit-end OA board is out of the permitted range.

  D. whether the line loss compensation is out of the permitted range.

  Correct Answer: A

• Question 23:

  When many alarms are reported at the same time, the alarm handling priority is as follows: Handle alarms according to the priorities of equipment alarms (such as BUS_ERR, HARD_ERR, and COMM_FAIL), optical-layer LOS, electrical-layer OTUk_LOF, ODUk_SSF, and protection switching.

  A. True

  B. False

  Correct Answer: A

• Question 24:

  Which of the following methods can be used to analyze faults in the NG WDM system?

  A. Loopback

  B. Service Signal Flow Analysis

  C. RMON

  D. Replacement

  Correct Answer: D

• Question 25:

  A and C are WDM OTM sites, and B is a regeneration site. If the ODU2_LCK signal is inserted at site A, which of the following statements are correct?

  A. Site C reports a ODU2_PM_LCK minor alarm.

  B. Site A reports a ODU2_PM_BDI minor alarm.

  C. Site A reports a ODU2_PM_LCK minor alarm.

  D. Site C reports a ODU2_PM_BDI minor alarm.

  Correct Answer: D

• Question 26:

  In the scenario where the non-convergence OTU processes OTN standard signals, both A and B are WDM sites. The OTU at station A accesses four channels of R_LOS signals on the client side. After being processed in the middle part and on the WDM side of the OTU at station A, the alarm signals are then sent to station B. The ODUk_PM_AIS alarm of the corresponding channel is generated in the middle part of station B. The ODUk_PM_AIS alarm is detected in the client device.

  A. True

  B. False

  Correct Answer: A

• Question 27:

  Which of the following statements about the electrical-layer overhead processing source function are correct?

  A. The OPUk performs client signal mapping, frequency adjustment, and rate adaptation in the transmit direction.

  B. The ODUkT calculates the BIP-8 and writes it into the TCMi.

  C. The OTUk calculates BIP-8 and writes it into SM, GCC0, FAS, and MAFS.

  D. the ODUkP calculates overheads such as BIP-8, PM, and GCC1/2.

  Correct Answer: C

• Question 28:

  In the scenario where the non-convergence OTU processes OTN standard signals, both A and B are WDM sites. After receiving the OTUk_TIM alarm on the client side, the OTU board at station A sends the OTUk_BDI alarm to the upstream. When the TIM follow-up action is disabled, the alarm is no longer transmitted to the downstream. When the TIM follow-up action is enabled, an SF event is generated. The WDM side of the OTU board at station B reports the ODUk_PM_AIS alarm, and the ODUk_PM_AIS alarm is transmitted to the downstream. The client equipment reports this alarm. After the WDM side of the OTU board at station B receives the OTUk_TIM alarm and the TIM follow-up action is disabled, the alarm is no longer transmitted to the downstream. When the TIM follow-up action is enabled, an SF event is generated. After the client side of station B processes the SF event, the client equipment reports the ODUk_PM_AIS alarm.

  A. True

  B. False

  Correct Answer: A

• Question 29:

  Loopback is a common operation for routine maintenance and troubleshooting. Which of the following statements about loopback operations are incorrect?

  A. The hardware loopback is performed by using the fiber jumper or self-loop cable to perform the loopback on the optical port or electrical port.

  B. When performing a hardware loopback on an optical port, you need to add an optical attenuator.

  C. After the outloop is performed, the signals are transmitted to the internal.

  D. After the inloop is performed, the signals are transmitted to the external.

  Correct Answer: D

• Question 30:

  Before querying bit errors and optical power on the U2000, you need to perform the () operation. Otherwise, the corresponding data cannot be queried.

  A. Enabling the NE Performance Monitoring Time

  B. Creating the logical fiber

  C. Synchronizing NE data

  D. Configuring data

  Correct Answer: C