Huawei Certified Network Professional-Building Carrier OTN Transmission Network

QUESTION NO: 1
What are the possible reasons why optical line protection cannot be automatically switched? (multiple choice)

A. The protection group parameters are incorrectly configured. B. Artificially implemented a lock switch or forced switch command. C. The working channel has failed. D. The protection channel has failed.

Correct Answer: A,B,D

QUESTION NO: 2
Which two slots of the OSN 8800 T32 can be used to insert SCC boards? (multiple choice)

A. 20 B. 11 C. 29 D. 28

Correct Answer: B,D

QUESTION NO: 3
When the IPA function is configured, when multiple auxiliary detection boards are configured, the detection board and all the auxiliary detection boards detect signal anomalies at the same time (if there are alarms such as MUT_LOS/R_LOS/R_LOF/K_LOC/OSC_RDI), the fiber is considered to be broken; The auxiliary detection board and the detection board are all restored to normal, and the fiber recovery is considered.

A. True B. False

Correct Answer: B

QUESTION NO: 4
After you create an NE, you cannot log in. What are the possible reasons? (multiple choice)

A. The time between the NE side and the NMS side is not synchronized. B. The NE user is logged in. C. The communication between the NMS and the NE is abnormal. D. The NE user password is incorrect.

Correct Answer: B,C,D

QUESTION NO: 5
For the LQM/TQM, only the TX1/RX1 optical port can be configured with the STM-16 or OTU1 service.
After the configuration, other client side optical ports are unavailable.

A. True B. False

Correct Answer: B

QUESTION NO: 6
Regarding the removal of the path operation from the network management, which of the following statements is wrong.

A. After the path is deleted from the network layer and the network element, the service is interrupted. B. Delete the path from the NE layer and delete the NE side with the path of the NE layer. C. The business is not interrupted after the path is deleted from the network layer. D. Deleting a path from the network layer deletes only the WDM path of the network layer on the NMS side.

Correct Answer: A

QUESTION NO: 7
During the normal operation of the network, the service working channel protected by the ODUk SNCP generates the conditions for triggering the protection switching. The service is automatically switched to the protection channel. After the working channel is faulty, the service cannot be automatically restored back to the working channel.
Which of the following are the possible reasons ()? (multiple choice)

A. The protection group "recovery mode" is "non-recovery" B. Artificially implemented manual switching, lock switching or forced switching commands C. The SNCP type is inconsistent with the business scenario requirements. D. When the working channel is normal, the service needs to be delayed by the "waiting for recovery time" and then switched back to the working channel by the protection channel. E. A small number of errors occur in the working channel

Correct Answer: A,B,C,D

QUESTION NO: 8
Regarding POWER_FAIL, which of the following statements is wrong?

A. If the alarm is reported on the board that is not the main control board, the main power supply in the board is invalid and the backup power supply is normal. This will cause the active/standby power supply to be switched without affecting services. B. If the alarm is reported on the PIU board, it indicates that the subrack input power supply voltage is abnormal and the power supply power module is faulty. C. If the alarm is reported on the main control board, the system time will be lost after power failure, and the network data will be lost within 30 minutes. D. If the alarm is reported on the board of the non-master board, the main power supply in the board fails and the backup power fails. This will cause service interruption.

Correct Answer: D

QUESTION NO: 9
Which of the following signals is sent back to the originator?

A. IAE B. AIS C. BDI D. LCK

Correct Answer: C

QUESTION NO: 10
The following descriptions of the OSN 6800 devices are correct. (multiple choice)

A. After monitoring the 15-minute and 24-hour performance events, all performance events will be cleared. B. The adjustable attenuation range of each channel of VA4 is 2~20dB C. The NMS can set the ID of each subrack of the OptiX OSN 6800 device. D. The wavelength selection of the tunable wavelength OTU can be performed on the network management

Correct Answer: B,D

QUESTION NO: 11
The M40 board has 2 waves of access, and the power per wave is -4dBm. Which of the following values is the power of the M40 output port? (M40 insertion loss is 6.5dB)

A. -8.5 B. -10.5 C. -7.5 D. -1

Correct Answer: C

QUESTION NO: 12
The OptiX OSN 8800 provides four-way switch alarm output. The first three channels default to: emergency alarm, important alarm, and secondary alarm. The other one is reserved. Alarm outputs can be cascaded.

A. True B. False

Correct Answer: B

Huawei Certified Network Professional-Building Carrier OTN Transmission Network - H31-331 Exam Questions