Huawei H12-931-ENU Real Exam Questions Test Engine Dumps Training With 320 Questions
H12-931-ENU Actual Questions Answers PDF 100% Cover Real Exam Questions
NEW QUESTION 103
The device perceives the frame structure, fixed framing mode, and encapsulation mode of time slot information in the TDM circuit:
- A. CESoPSN
- B. QINQ
- C. MPLS
- D. SAToP
Answer: A
NEW QUESTION 104
#1 and #2 are OTM network elements, point-to-point chain services, 1 channel, OAU light emission +4dbm at station A, -35dbm light at the SC2 board at station #2, -30dbm for the OBU board, and -30dbm for the OTU single board. There is no light on the board, what is the most likely cause of the failure?
- A. #2 site OTU board failure
- B. #1/#2 line attenuation is too large
- C. #2 site optical amplifier board failure
- D. Originating OTU board failure
Answer: B
NEW QUESTION 105
OTN needs to change the original single-wave pass-through from D40 to M40 to use NQ2 as a relay. The error described below is
- A. When you do not need to relay in cross mode, at this time, the NQ2 fiber connection (take 1 optical port as an example) is the westward direction of IN1 port and the eastward direction of OUT1 port.
- B. It can be relayed in cross mode, and cross board needs to be configured at this time
- C. For optical layer ASON and electrical layer ASON applications, setting "optical relay mode" and "electrical relay mode" has no effect on the system
- D. When the NQ2 adopts the relay board mode, the ASON is not turned on. For the end-to-end path, the electrical relay mode is required
Answer: D
NEW QUESTION 106
What's not a trivial task for ASON's business recovery is
- A. Downgrade to traditional business reconstruction and restoration
- B. Optimize to other path recovery
- C. Forced reactivation to restore
- D. Download network element database recovery
Answer: D
NEW QUESTION 107
Regarding file operation and maintenance, the following are wrong ()
- A. To transfer a file on your own PC to the workstation, you can use the put command
- B. The file compressed with winzip on the PC can be decompressed with the unzip command on the workstation
- C. For text files, ascll is not available for transmission
- D. When using ftp to transfer files, ASCII files can be transferred in binary mode, but binary files cannot be transferred in ASCII mode
Answer: C
NEW QUESTION 108
The PTN self-organizing network supports physical layer clock synchronization, IEEE 1588V2 clock and time synchronization, and IEEE 1588 ACR clock synchronization.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 109
Which of the following functions can the PTN equipment handle the GE optical interface of the single board through the Ethernet? (multiple choice)
- A. Docking with ODUk interface
- B. Docking with PTN equipment
- C. Interfacing with customer equipment
- D. Docking with STM-N interface
- E. Realize physical layer synchronization
- F. Realize IEEE 1588 V2 synchronization
Answer: B,C,E,F
NEW QUESTION 110
Throughput refers to the maximum rate of the network without frame loss. During the test, the test starts from the maximum line rate frame rate Xmax that the device can support. When the device starts to lose frames, reduce the frame rate. When the device does not lose frames Time, increase the frame rate
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 111
The scope of 1+1 protection in the OTU board is the optical fiber on the OCH path, that is, the optical fiber between the dual transmission of the source OTU single board and the selective receiving of the sink OTU single board. Cannot protect OTU board
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 112
Which of the following descriptions of the 100G hybrid transmission system is wrong ()?
- A. In mixed transmission, the coherent signal starts from the long wavelength, 10G starts from the short wavelength, and the isolation band can be filled with 40G DQPSK wavelength
- B. The mixed transmission cost is related to the number of transmission spans and the width of the isolation band, and has nothing to do with the FEC encoding method
- C. 40G DQPSK and coherent signals will not affect each other, no isolation band is required
- D. Coherent and non-coherent signals (10G, 40G ODB) will affect each other, resulting in a sharp drop in performance, and isolation bands are necessary
Answer: B
NEW QUESTION 113
If the low-level crossover of SDH equipment is exhausted, there are several common optimization schemes (multiple choice)
- A. Replace the circuit board
- B. Change channel protection to multiplex section protection
- C. Replace the high-capacity cross board
- D. Upgrade host software
- E. Routing time slot optimization
Answer: B,C,E
NEW QUESTION 114
For the 1+1 protection in the OTU board of the external OLP, it supports two kinds of non-extended mode and extended mode. The extended mode increases the switching conditions of the electrical layer.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 115
Generally, which of the following is not included in the performance evaluation of a WDM network
- A. Single wave optical power & flatness
- B. Monitoring signal optical power
- C. OSNR
- D. Dispersion & FEC BER
- E. Combined optical power
Answer: B
NEW QUESTION 116
In the ASON network, when a root optical fiber contains part of the multiplex section, the working time slot of the multiplex section constitutes (); the protection time slot of the multiplex section constitutes (), and the time slots unrelated to the multiplex section constitute (). If resources are reserved for the time slot (for static service use), this part of the time slot is divided into ().
Please select the answer that meets the requirements from the options below in order.
- A. working link, protected link, unprotected link, static service dedicated link
- B. Protected link, working link, unprotected link, unprotected link
- C. working link, protection link, unprotected link, unprotected link
- D. working link, protection link, unprotected link, protection link
Answer: A
NEW QUESTION 117
Regarding the optical power commissioning of the RAU2 board, which of the following options is correct () (multiple choice)
- A. Before turning on the Raman laser, make sure that the connectors are connected well
- B. Because the RAU2 board has built-in EVOA, the Raman gain needs to be directly set to the maximum gain of the supported fiber type
- C. Before commissioning the RAU2 board, the team function must be disabled first, and then the Raman board laser must be turned off
- D. When using MONO or MOWS to measure online optical power, 20dB compensation is required
Answer: A,B,D
NEW QUESTION 118
What are the main application scenarios of 1588 ACR? (multiple choice)
- A. Traversing the asynchronous network
- B. Huawei PTN network
- C. Traversing a leased third-party network
- D. Huawei SDH network
Answer: A,C
NEW QUESTION 119
The following description of cluster management, the error is ()
- A. VVR must be started before the App, and then closed before the App
- B. The nodes in the cluster have the same cluster ID
- C. A resource group needs to be online only if all the resource groups it depends on are activated before it can go online; when a resource group is offline, the resource groups it depends on are all offline before it can be offline
- D. VVR group: includes basic resources for VCS operation; ClusterService group: used for data replication control
Answer: D
NEW QUESTION 120
Combiners are divided into balanced combiners and unbalanced combiners. 1+1 FD generally chooses unbalanced combiners?
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 121
Which of the following information needs to be paid attention to when the TOA board opens the GE service (multiple choice)
- A. Ethernet working mode
- B. Docking module type
- C. Ethernet VLAN information
- D. MTU value
Answer: A,B,D
NEW QUESTION 122
Regarding the network element package loading package diffusion upgrade, which of the following statements is correct?
- A. The package diffusion software upgrade task may not include the gateway network element
- B. Configure activation grouping, gateway NEs and non-gateway NEs cannot be grouped into the same group
- C. The number of network elements for the package diffusion upgrade task does not exceed 15.
- D. The package diffusion software upgrade can only include at most one gateway network element, and the non-gateway network elements in the task must belong to the same gateway network element.
Answer: A,B,C,D
NEW QUESTION 123
The following is wrong about the position of the dispersion module in the signal flow.
- A. If there are two OBU boards, the DCM is placed between the two OBUs
- B. If there is only one OBU board, the DCM is placed after the OBU
- C. If there is an OAU board, DCM is placed between OAU's TDC/RDC
- D. The OTM station usually pre-fills 20KM DCM before sending OBU
Answer: B
NEW QUESTION 124
Which of the following are the functions of MPLS-TP OAM? (multiple choice)
- A. Ping
- B. Traceroute
- C. LT
- D. LB
Answer: C,D
NEW QUESTION 125
Which of the following features does the N3EFS4 board support? (multiple choice)
- A. QINQ
- B. LPT
- C. QoS
- D. LCAS
Answer: B,C,D
NEW QUESTION 126
Regarding system security planning and reliability planning, which of the following is correct (multiple choice)
- A. Operational safety and reliability design includes: access control, ACL control, time control, limit on the number of logins, user monitoring and operation confirmation.
- B. Based on security considerations, the recommended communication bandwidth for medium-scale remote dual-system hot backup communication is 2M.
- C. In the process of data output, to ensure the security of data transmission, U2000 needs to support data encryption protocol, in which SSLv3 protocol can be used for data transmission encryption between U2000 and network element equipment, and it can also be used for U2000 and upper OSS system Data transmission between is encrypted.
- D. The security management of the network management mainly includes object management, password management, access control management, and power and domain management.
Answer: A,C,D
NEW QUESTION 127
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