Practice H12-931-ENU Questions With Certification guide Q&A from Training Expert TestkingPDF
Free Huawei H12-931-ENU Test Practice Test Questions Exam Dumps
NEW QUESTION 138
The board types that need to be upgraded when NG-SDH equipment is upgraded are: 1. Cross-connect board 2. Main control board 3. Service board. What is the correct upgrade sequence?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 139
A certain system is configured with SOM, only the optical power information is in the query spectrum analysis data, and the OSNR is displayed as "---". The OSNR is abnormal at this time, the possible reason is ()?
- A. There is a single-board optical cross-connection in the Och path or the Och is not created
- B. Abnormal communication between network elements
- C. The OMS segment is not correctly configured or the OMS segment is configured with a board not in place
- D. After the networking changes, the SOM function is not reconfigured
- E. Scanning spectra of OMCA/MCA4/MCA8 boards are inconsistent
Answer: A,B,C,D,E
NEW QUESTION 140
The ring network of the OSN6800 equipment group was newly opened, and ODU1-SNCP/N protection was enabled. The engineer reported that a switch occurred one day and has not been restored, but there is no problem with the optical cable. There is an ODU_SNCP_PS alarm on the corresponding ND2 optical port.
Possible reasons are: (multiple choices)
- A. The protection type is configured as SNC/I
- B. Related circuit board failure
- C. "LCK Insert" is set to enable the PM overhead of the related circuit board
- D. The related circuit board has a minor alarm ODU1_PM_LCK
Answer: B,C,D
NEW QUESTION 141
The following descriptions about 1+1 protection and 1:1 protection of MPLS Tunnel are correct (multiple choice)
- A. MPLS Tunnel 1:1 protection has two types of services: double-ended switching and single-ended switching. MPLS Tunnel 1+1 protection only has single-ended switching.
- B. The APS protocol protected by the MPLS Tunnel 1:1 transfers the protocol status and switching status to each other through the tunnel transmission
- C. If you want to protect the MPLS Tunnel, you need to create an MPLS Tunnel protection group
- D. MPLS Tunnel 1+1 protected service with dual sending and selective receiving, MPLS Tunnel 1:1 protected service with single sending and single receiving
Answer: B,C,D
NEW QUESTION 142
As shown below:
The service of station A is broadcast to station B and station C.
When the branch TOA (R8 version) of station A is connected to FE/GE, and GE adopts TTT-GMP or GFP-T encapsulation, in order to keep the switch port of station A in the Up state: the methods that can be used on OTN equipment are ( Multiple choice)
- A. Configure a one-way cross from a circuit board to a tributary board at site A
- B. Configure a one-way cross from a tributary board to a line board at site B, and configure a one-way cross from a line board to the tributary board at site A
- C. Configure the drop-in code stream type of the TOA of site A as "empty code stream"
Answer: B,C
NEW QUESTION 143
What technologies can be used to achieve congestion avoidance (multiple choice)
- A. WRED
- B. PQ
- C. RED
- D. WFQ
Answer: A,C
NEW QUESTION 144
What are the main modules of Huawei RTN 900 series equipment? (multiple choice)
- A. ODU
- B. IDU
- C. Antenna
- D. GPS
- E. IF cable
Answer: A,B,C,E
NEW QUESTION 145
The maximum dispersion tolerance of an OTU board is 800ps/nm, so on G.652 fiber, the dispersion limited distance can be roughly considered as
- A. 40KM
- B. 60KM
- C. 80KM
- D. 10KM
Answer: A
NEW QUESTION 146
The protection of the following PTN equipment belongs to the bundling of multiple ports to provide higher bandwidth and reliability. Which one? (multiple choice)
- A. LAG/MC-LAG
- B. Tunnel APS/PW APS
- C. LAG/ML-PPP
- D. OAM/BFD
Answer: A,C
NEW QUESTION 147
The Tunnel-level APS protection of Hybrid MSTP equipment can support forced switching and locked switching, and the priority of forced switching is higher than that of locked switching.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 148
According to the requirements, before OTN 6800/8800 equipment is upgraded, it is necessary to return the network element health check file to TAC analysis
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 149
NG-SDH equipment allocates ECC channel numbers according to certain principles. For example, by default, first insert a four optical port board in slot 4, the board will be assigned channel numbers 0, 1, 2, 3, and then insert an SL16 board in slot 2, then the board will be The assigned channel number is 4. If the SL16 board in slot 2 is unplugged at this time and a four optical port board is inserted in slot 8, what is the assigned channel number?
- A. 4, 5, 6, 7
- B. 5, 6, 7, 8
- C. 4, 6, 7, 8
- D. Random allocation
Answer: A
NEW QUESTION 150
In NG-SDH equipment, which of the following conditions will not cause TPS switching to occur?
- A. Chip abnormality (SD538, SA527, CPLD)
- B. Report T_LOSEX on the working branch board
- C. 58M crystal oscillator abnormal
- D. 3.3V power supply undervoltage
Answer: B
NEW QUESTION 151
On the U2000 network management, the packet plane and TDM plane in the Hybrid MSTP device can be managed uniformly to achieve end-to-end service intercommunication.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 152
In the network, clock equipment is usually used to ensure network synchronization, and different clock sources are selected according to the requirements of different clock accuracy. If you want to meet the clock accuracy of G.811, which clock source can you choose? (multiple choice)
- A. GPS+ Rubidium Atomic Clock
- B. Beidou + Rubidium Atomic Clock
- C. GPS+ crystal clock
- D. Cesium Atomic Clock + Rubidium Atomic Clock
Answer: A,B,D
NEW QUESTION 153
Which of the following information needs to be paid attention to when the TOA board opens the GE service (multiple choice)
- A. MTU value
- B. Docking module type
- C. Ethernet working mode
- D. Ethernet VLAN information
Answer: A,B,C
NEW QUESTION 154
The security management of network management mainly includes object management, password management, access control management and decentralized domain management, etc. The security management of network elements includes network element access control, network element user management, and network element operation authority management.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 155
After a maintenance person failed to start the CORBA interface, he listed several inspection steps.
1. View the log file "%IMAPROOT%/server\var\logs\Develop\nbi\Agent_CORBA\unbi_sys_yyyyMMdd_hhmmss_*.log";
2. Check whether the U2000 License file supports the U2000 CORBA interface function;
3. Check if the %IMAPROOT%/server/ns.ior file is deleted. Is his operation correct?
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 156
User A and user B belong to the Team group. User A has a file File1.
After running the command "$ chmod 750 File1", the following statement is wrong.
- A. User A has read/write/execute permissions to File1
- B. User B cannot modify File1 and does not have this permission
- C. Users who are not in the Team group, only have read access to File1
- D. Users in the Team group have read and execute permissions on File1
Answer: C
NEW QUESTION 157
Which of the following abnormal conditions will trigger the TPS protection switching of the PTN equipment?
- A. The work processing board is offline
- B. The working interface board is offline
- C. The business interface of the working interface board is loose
- D. Business interruption caused by non-hardware reasons on the work processing board
Answer: A
NEW QUESTION 158
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