最新なHuawei H31-321問題集（140題）、真実試験の問題を全部にカバー！

質問 1：
What do typical methods of testing Ethernet performance on NG-SDH equipment include?
A. System acceptance test
B. Equipment performance test
C. User-defined test
D. Network performance test
正解：B,C,D

質問 2：
Which of the following are true about AU pointer justification?
A. When an NE detects all "l"s in the received HI and H2 bytes, the NE reports the AU-AIS alarm.
B. The value of the AU-FTR pointer is in the last ten bits of the HI and H2 bytes. Therefore, the value range is 0 to 1023.
C. AU-FTR points to the J0 byte.
D. The AU pointer is adjusted because the clocks of an upstream NE and a downstream NE are asynchronous.
正解：A,D

質問 3：
Which of the following are true about laser safety operations?
A. When installing or maintaining an optical interface board or optical fibers, do not look into the optical interface board or fiber connectors.
B. You can replace optical interface boards or optical modules during equipment-side maintenance.
C. You need to disconnect the fiber jumper from the optical interface board of the peer NE when using an optical time domain reflectometer (OTDR).
D. Use protective caps to cover unused optical ports and optical connectors of fiber jumpers.
正解：A,C,D

質問 4：
What is the line rate of 64-byte frames on an FE port of transmission equipment?
A. 148810 frames/s
B. 156250 frames/s
C. 8160 frames/s
D. 8128 frames/s
正解：A

質問 5：
After the alarm inversion function is enabled, board alarm status, including alarm indicators, will change, and the alarm status data on the NE and on the NMS will be updated accordingly.
A. TRUE
B. FALSE
正解：B

質問 6：
Which of the following statements are true about fiber-shared virtual path protection?
A. When the VC-4 timeslots of an optical path allocated to two SNCP rings are the same, services on the VC-4 timeslots have double protection.
B. The VC-4 timeslots of an optical path allocated to two MSP rings must be different.
C. When the VC-4 timeslots of an optical path allocated to two MSP rings are the same, services on the VC-4 timeslots have double protection.
D. When the VC-4 timeslots of an optical path allocated to both an MSP ring and an SNCP ring are the same, services on the VC-4 timeslots have double protection.
E. The VC-4 timeslots of an optical path allocated to an MSP ring and those allocated for an SNCP ring must be different.
F. The VC-4 timeslots of an optical path allocated to two SNCP rings must be different.
正解：B,D,E,F

質問 7：
Which of the following are true about TU pointer justification?
A. The value of the TU pointer is in the last 10 bits of the VI and V2 bytes.
B. The justification step of the TU pointer is three bytes.
C. When VC-12 and TU-12 have no frequency or phase difference, the position of the V5 byte is 0.
D. When VI and V2 are all "l"s, the local NE reports the TU-AIS alarm.
正解：A,D