Updated Jan-2022 Premium H31-341-ENU Exam Engine pdf - Download Free Updated 202 Questions
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NEW QUESTION 100
Since the nonlinear effect is generated, its influence on the service signal cannot be repaired. Therefore, the treatment of the nonlinear effect of the existing network is to avoid the occurrence of nonlinear effects.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 101
The following description of the signal flow of the OTM site (OSN 8800 device), which is wrong?
- A. OSC receiving direction: Line-> FIU-> Sc2
- B. Service transmission direction: SDH signals-> LSX-> M40V-> OBU1-> Line
- C. Service receiving direction: Line->FIU-> OAU-> M40V-> LSX-> SDH signals
- D. Service transmission direction: SDH signals-> LSX->M40V-> OBU1-> FIU-> Line
Answer: C
NEW QUESTION 102
OLA sites can also use ESC.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 103
In the non-aggregated OTU processing SDH standard signal scenario, both A and B are WDM stations, and the R_Los alarm is detected on the client side of the OTU of the A station. After the alarm is processed on the WDM side of the OTU, the client side of the downstream B station detects and reports the REM_SF alarm, and the B station transmits the signal to the downstream client device and reports the R_LOS alarm to the client device.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 104
Which of the following is not a function of RSVP-TE?
- A. Establish neighbor relationship
- B. LSP path optimization
- C. LSP deletion
- D. LSP rerouting
Answer: A
NEW QUESTION 105
Which of the following description of the process for optimizing the line attenuation compensation anomaly is correct? (Multiple choice)
- A. According to the user adjustment command, adjust the line attenuation of the OCh path to make the downstream light output reach the normal value.
- B. The SCC board at the downstream site of the fault reports the alarm to the power detection unit (OA) of the first node through DCN communication, and reports the alarm to the SOM on the SC of the first node.
- C. The downstream power detection unit (OA) detects that the line attenuation deviation exceeds the threshold and reports the alarm to its own SCC board.
- D. After receiving the alarm, the SOM obtains the OCh path corresponding to the alarm and adds it to the management path to be optimized.
Answer: A,C,D
NEW QUESTION 106
In the WDM system, what is the reason for the fiber attenuation and bit error rate? (Multiple Choice)
- A. Fiber break
- B. Fiber aging
- C. Fiber damage
- D. Fiber bending
Answer: B,C,D
NEW QUESTION 107
Which of the following alarms trigger optical line protection switching?
- A. POWER_DIFF_OVER
- B. R_LOS
- C. MUT_LOS
- D. R_LOF
Answer: B
NEW QUESTION 108
Which of the following description of discrete services is correct? (Multiple Choice)
- A. Perform path search on the U2000 network management. Cross-connections that do not form a path are called high-bandwidth services.
- B. For the cross-connections, after a path search, either a discrete service or forming a path with other cross-connections, which is impossible to be a discrete service, and forming a path with other cross-connections.
- C. A service is searched for a discrete service, indicating that the service is not working properly on the NE side.
- D. Discrete service management requires the U2000 license to have path management functions.
Answer: B,D
NEW QUESTION 109
In a WDM system, after a distance of transmission, the OSNR of the signals at the receive end decreases to a certain extent. Which of the following is the main cause?
- A. The fiber attenuation is too large.
- B. Use of Demultiplexer Multiplexer
- C. Use of EDFA
- D. New optical fiber is not used.
Answer: A
NEW QUESTION 110
In a typical chained NG WDM network (such as A -> B -> C, A, B, and C are three sites), it is found that the official telephone number between the stations is not available during the commissioning. What are the possible reasons? (Multiple choice)
- A. B station SC2 board is damaged
- B. In the SC2 board configuration of station B, the configuration is incorrectly changed to "the official does not pass the optical port."
- C. C station receiving direction OA board damage
Answer: A,B
NEW QUESTION 111
What are the classification of Ethernet performance tests? (Multiple choice)
- A. Custom test
- B. Network equipment performance verification test
- C. Network performance test
Answer: A,B,C
NEW QUESTION 112
For the SSM protocol, which of the following statements are correct? (Multiple choice)
- A. Whether to start the SSM protocol has little effect on the clock network.
- B. When the extended SSM protocol is started, the clock network can be configured in both directions and can be looped.
- C. When the standard SSM protocol is started, the clock network can be configured in both directions but cannot be looped.
- D. When the SSM protocol is not enabled, the clock network can only be configured as one-way and cannot be looped.
Answer: B,C,D
NEW QUESTION 113
Which of the following statements about replacing the SCC board is incorrect?
- A. If the software version of the new SCC board is later than equipment version, clear the database of the SCC board, and then downgrade the software on the SCC board to the same version as the equipment.
- B. If the software version of the new SCC board is earlier than the equipment version, upgrade the software on the SCC board to the same version as the equipment.
- C. After the SCC board is removed, the BD_STATUS and COMMUN_FAIL alarms are reported. After the new board goes online, these alarms need to be manually cleared.
- D. In the case of the 1 + 1 hot backup of the SCC board, replacing the control board does not affect services when the active/standby switchover is performed.
Answer: C
NEW QUESTION 114
Which step is more when the the single board replacement operation of main control board single configuration than main control board double configuration?
- A. Query the alarm of the board and confirm that the original alarm has been cleared.
- B. Consistency check of network management and network element data.
- C. Download the original configuration data
- D. Ensure that the version of the host software is the same before and after the replacement.
Answer: C
NEW QUESTION 115
Which of the following alarms will trigger the optical line protection switching? (Multiple choice)
- A. R_LOS
- B. POWER DIFF_OVER
- C. MUT_LOS
- D. R_LOF
Answer: B,C
NEW QUESTION 116
When the NNI port attribute is configured on the same subnet, the IP addresses of the ports on different links can be duplicated.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 117
Which of the following ROADN nodes are configured correct? (Multiple choice)
- A. WSIM9+WSD9
- B. WSD9+RMU9
- C. WSM9+RDU9
- D. WSMD9
Answer: A,B,C,D
NEW QUESTION 118
Which of the following functions is added to EX40 compared with X40?
- A. Monitors the optical power of a single channel.
- B. Fewer slots are occupied.
- C. Supports optical-layer cross-connections.
- D. More multiplexed and demultiplexed wavelengths
Answer: D
NEW QUESTION 119
When you configure the Layer 2 attribute of the Ethernet, you need to set the Default VLAN ID and VLAN Priority of the untagged frame when the TAC ID is set to Access or Hybrid.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 120
The following description of the Flexible ROADM, which is wrong?
- A. Improve spectrum utilization and meet flexible scheduling requirements in the future era of over 100 Gbit/= rate.
- B. WSMD2 board supports F1exible ROADM configuration
- C. Flexible grid technology provides flexible bandwidth settings and flexible bandwidth allocation and scheduling.
- D. DFlexible ROADM is compatible with existing networks
Answer: B
NEW QUESTION 121
The packet protection features supported by the OSN 1800V include _______. (Multiple choice)
- A. Tunnel APS
- B. PW APS
- C. TPS
- D. LAG
Answer: A,B,C,D
NEW QUESTION 122
MPLS APS is a network protection mechanism. It implements service switching by using the MPLS OAM detection function.
- A. True
- B. False
Answer: A
NEW QUESTION 123
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