Huawei H31-341 Online Practice Questions and Exam Preparation

Huawei H31-341 Online Questions & Answers

• Question 21:

  FXS and FXO are the names of the ports used by analog telephone lines. FXO ports and FXS ports are always used in pairs.

  A. True
  B. False
  A. True

• Question 22:

  If OCh trails fail to be created by trail, which are the possible causes?

  A. There are still alarms that are not cleared on the boards involved in the OCh.
  B. The wavelength settings at the source and sink ends are inconsistent.
  C. Some fibers are not connected.
  D. There is no server trail.
  A. There are still alarms that are not cleared on the boards involved in the OCh.

• Question 23:

  In the case of the OptiX OSN equipment, when the standby board is normal, which of the following operations does not cause the active/standby switching of the cross-connect board or clock board?

  A. Delete the active cross-connect board or clock board logically.
  B. Open the upper and lower ejector levers of the active board at the same time.
  C. Deliver the active/standby switchover command.
  D. Perform a cold reset on the cross-connect or clock board.
  A. Delete the active cross-connect board or clock board logically.

• Question 24:

  What are the wavelengths of the OSC channel used by the ST2 board?

  A. 1510nm
  B. 1491nm
  C. 1511nm
  D. 1471nm
  C. 1511nm

• Question 25:

  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.
  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.

• Question 26:

  Which of the following statements about the modulation technologies of the 40Gbit/s and 100Gbit/s coherent systems are correct?

  A. The modulation technology used in a 100G coherent system is ePDM-QPSK.
  B. The modulation technology used in a 40G coherent system is ePDM-BPSK.
  C. The modulation technology used in a 40G coherent system is ePDM-QPSK.
  D. The modulation technology used in a 100G coherent system is ePDM-BPSK.
  A. The modulation technology used in a 100G coherent system is ePDM-QPSK.

• Question 27:

  Which of the following is not a precaution after board replacement?

  A. Record the settings of jumpers and DIP switches on the board.
  B. /For functional units that have backups, check whether the switchover is normal.
  C. Check the indicator blinking status of the board and ensure that the board works properly.
  D. Ensure that no abnormal alarm.
  D. Ensure that no abnormal alarm.

• Question 28:

  The troubleshooting methods that can be used to separate external faults are:

  A. Configuration Data Analysis
  B. Meter Test
  C. Replacement
  D. Loopback
  A. Configuration Data Analysis

• Question 29:

  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 the it into the TCMi.
  C. OTUk calculates BIP-8 and writes it into SM, GCCO, FAS, and MAFS.
  D. The ODUkP calculates overheads such as BIP-8, PM, and GCC1/2.
  C. OTUk calculates BIP-8 and writes it into SM, GCCO, FAS, and MAFS.

• Question 30:

  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 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
  A. True