[2025年06月19日] 実際のH31-341_V2.5-ENU試験問題集は2025年最新のHuawei練習試験合格させます
2025年最新の実際にあるH31-341_V2.5-ENU問題集テストエンジン試験問題はここにある
質問 # 161
Which of the following comparisons between commonly used optical fibers G.652 and G.655 is correct? (Multiple choice)
- A. G52 can withstand higher fiber input power than G.655
- B. The chromatic dispersion coefficient of BG52 is smaller than that of G.655
- C. The attenuation coefficient of DG52 is lower than that of G.655
- D. G52 has a larger core diameter than G.655
正解：A、D
質問 # 162
Which of the following options are correct for ROADM node configuration? (Multiple choice)
- A. WSD9+RMU9
- B. WSM9+RDU9
- C. WSM9+WSD9
- D. WSMD9+WSMD9
正解：A、B、C、D
質問 # 163
Which of the following platforms can be deployed for a (local) HA solution where the active and standby servers are deployed at the same location? (Multiple choice)
- A. All of the above
- B. Solaris
- C. Windows
- D. SUSE Linux
正解：B、D
質問 # 164
Which of the following descriptions about OL, OLA and OPC boards is wrong?
- A. The OPC board has different functions depending on the inserted modules
- B. The OL single board is used for the sending end and the receiving end
- C. The OLA board is used in the relay site
- D. All three boards can realize the function of optical signal amplification
正解：D
質問 # 165
When inserting LCK to the ODUk signal at the local end, what processing will the downstream station system perform? (Multiple choice)
- A. Insert ODUk_PM_LCK alarm
- B. Download ODUk_AIS information
- C. Return ODUk_PM_BDl
正解：B、C
質問 # 166
Which of the following descriptions about the EX40 board is wrong?
- A. The maximum difference in insertion loss of each channel is not more than 5dB
- B. The board supports online optical power monitoring
- C. Single board supports application in dual-fiber bidirectional system
- D. Enhanced 40-wave multiplexer/demultiplexer board
正解：A
解説：
Explanation:
質問 # 167
In a chain network, NE1, NE2, and NE3 are all OADM sites, and NE1 is a gateway network element, and uses OSC communication. When the optical monitoring board at the intermediate site NE2 fails, which of the following phenomena will not occur?
- A. The OSC_LOS alarm is reported on the monitoring boards in NE1 and NE3
- B. Service interruption between NE1 and NE3
- C. The monitoring board in NE2 reports the BD_STAIUS alarm
- D. The optical monitoring signal between NE1 and NE3 is interrupted
正解：B
質問 # 168
When a 80 wave ROADM site uses a TM20 for multiplexing, an ITL board must be configured.
- A. False
- B. True
正解：B
質問 # 169
Which of the following options are included in the advantages of WDM? (Multiple choice)
- A. Large capacity, "transparent" transmission of data
- B. Compatible with future all-optical switching networks
- C. The system is easy to upgrade, and the existing investment can be protected to the greatest extent during the upgrade
- D. Can fully replace SDH equipment
正解：A、C
質問 # 170
The VLAN domain can isolate the unicast packets of different users and also isolate the broadcast packets of different VLANs.
- A. False
- B. True
正解：B
質問 # 171
When configuring 1+1 optical line protection, you can choose RI1/T01 or RI2/T02 as the working channel according to the actual situation.
- A. True
- B. False
正解：B
質問 # 172
Which of the following statements about the main and backup channels of optical line protection is wrong?
- A. If the current optical power difference between the active and standby channels exceeds the "main and standby channel difference threshold (dB)", the system will initiate protection switching.
- B. "Initial Difference Between Active and Standby Channels (dB)"—the reference value used to set the optical power difference between the active and standby channels of the board.
- C. "Master-standby channel difference threshold (dB)" - used to set the difference between the main and standby optical ports of the board when the optical power difference reaches a certain value, it will be regarded as a signal failure (SF).
- D. When the difference in the optical power of the full backup exceeds the threshold, the optical switch will switch the service to the backup channel, and the set value supports query. Recommended setting is 5dB
正解：D
質問 # 173
Corresponds to the ISO seven-layer model. Ethernet corresponds to the physical layer and network layer of the seven-layer model, and the specifications defined by Ethernet include the MAC sublayer and the physical layer of the data link layer.
- A. True
- B. False
正解：B
質問 # 174
Which of the following alarms is transmitted from downstream to upstream?
- A. ODUk_PM_LCK
- B. ODUk_PM_OCI
- C. ODUk_PM_AIS
- D. ODUk_PM_BDI
正解：D
質問 # 175
MAC loopback and PHY loopback are used for fault location. When the MAC loopback is set to in loop, the PHY loopback can be set according to the actual situation.
- A. True
- B. False
正解：B
質問 # 176
Which of the following statements about clock sources is wrong?
- A. If the standard SSM protocol is enabled, you need to set the clock source ID
- B. Usually the tributary clock is not used as the clock source of the device
- C. The internal clock source has the lowest priority due to low precision
- D. Select the same SSM protocol for all NEs in the clock protection subnet
正解：A
質問 # 177
Which of the following functions does EX40 increase compared to X40?
- A. Support single-channel optical power monitoring
- B. Occupies fewer slots
- C. The number of multiplexing and demultiplexing waves is more
- D. Support optical layer crossover
正解：A
質問 # 178
What is the connection port between BTS and transmission in the high-speed rail base station?
正解：
解説：
2M electrical port
質問 # 179
The calculation of BIP-8 belongs to one of the source functions of the OTUk layer.
- A. False
- B. True
正解：B
質問 # 180
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