If the quality of two BITs clocks is the same, what may happen after a protection switchover of the clock source?
A. The NE fails to trace clocks.
B. Protection switching of clock sources occurs frequently.
C. The NE reports the clock signal loss alarm.
D. Pseudo synchronization occurs.
Which of the following bytes cannot be processed in pass-through mode on an ADM site using OptiX NGSDH equipment?
A. K1
B. K2
C. A1
D. A2
When the local end detects BER threshold-crossing in the receive direction, what performance events may be reported in the transmit direction of the peer end?
A. LPFEBBE
B. HPFEBBE
C. MSFEBBE
D. RSFEBBE
You need to collect and save field data in a timely manner during troubleshooting. What does the data include?
A. Cabinet alarm indicator status
B. Running status of NEs and boards
C. Configuration data of NEs and boards
D. Equipment alarms and performance events
E. NMS operation logs
Which of the following functions, when enabled, allows the transmitting laser of an optical port to be automatically shut down when the IN port fails to receive signals?
A. LCAS
B. ALS
C. ALC
D. LPT
No fiber connections exist between three rings. The gateway NEs of the three rings are connected to the NMS using different network cables but through the same HUB. What can you do to isolate ECC communication between the gateway NEs?
A. Disable extended ECC on the three gateway NEs.
B. Disable the OSI protocol on the three gateway NEs.
C. Disable DCC access on the three gateway NEs.
D. Delete the DCC transparent transmission bytes on the three gateway NEs.
What is the default user name of the NE when you create an OptiX OSN 3500 NE on the U2000 for per-NE commissioning?
A. admin
B. root
C. szhw
D. lct
By default, which of the following alarms will trigger AIS insertion on OptiX NG-SDH equipment?
A. R_OOF
B. LP_UNEQ
C. HP_UNEQ
D. HP_LOM
When a network is in synchronous mode, the AU pointer is used for frequency tracing and alignment between synchronized signals. When a network is in asynchronous mode, the AU pointer is used for phase alignment.
A. TRUE
B. FALSE
The timeslot numbering policy used on Huawei OptiX NG-SDH equipment is ITU-T G.707-compliant sequential scheme (timeslot scheme) and that used on third-party equipment is interleaved scheme (line scheme). Which timeslot of third-party equipment can be interconnected with slot 35 of Huawei equipment?
A. 34
B. 35
C. 36
D. 37
Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Huawei exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your H31-321 exam preparations and Huawei certification application, do not hesitate to visit our Vcedump.com to find your solutions here.