2026 Latest H31-341_V2.5-ENU dumps Exam Material with 122 Questions
Huawei H31-341_V2.5-ENU Questions and Answers Guarantee you Oass the Test Easily
Huawei H31-341_V2.5 (HCIP-Transmission V2.5) Exam is an advanced level certification exam that is designed to test the knowledge and skills of professionals who are involved in the planning, designing, and maintenance of transmission networks. H31-341_V2.5-ENU exam is targeted towards individuals who have already completed the HCNA-Transmission certification and are looking to further enhance their expertise in the field of transmission technology.
NEW QUESTION # 19
What does the optical layer overhead include? (Multiple choice)
- A. Och
- B. ODUk
- C. OTS
- D. OMS
Answer: A,C,D
NEW QUESTION # 20
Among the working modes provided by the line fiber quality monitoring function, which one is not included?
- A. Intra-office mode
- B. Automatic mode
- C. Manual mode
- D. Near-end mode
Answer: B
NEW QUESTION # 21
For WDM networks, which of the following descriptions are correct?
- A. For the OAU board, you can roughly judge the type of DCM module connected to the site according to the upper threshold of the nominal gain on the network management system - the upper threshold of the actual gain
- B. For the OAU board, you can roughly judge the type of DCM module connected to the site according to the difference between the output of PAOUTI and the input of BAIN
- C. For 10G and 100G mixed transmission networks, you can judge whether the dispersion compensation is consistent with the design according to the performance of 10G
- D. For 10G and 100G mixed transmission networks, you can judge whether the dispersion compensation is consistent with the design based on the performance of 100G
Answer: B
NEW QUESTION # 22
Which of the following descriptions about the DWSS20 board is correct? (Multiple choice)
- A. The downwave part implements the signal of the main optical channel received from the IN port, and outputs it through the DM1~DM20 port in any wavelength combination, realizing the scheduling of any wavelength to any port
- B. DWSS20 supports optical layer level signal service scheduling with up to 20 dimensional wavelengths
- C. DWSS20 only supports single-wavelength optical power commissioning for the upwave, but not for the downwave
- D. The wave adding part realizes that any combination of wavelengths scheduled in any direction is added through any port of AM1~AM20, and output from the OUT port
Answer: A,B,D
NEW QUESTION # 23
When configuring the dual-stage amplifier board of RAU+OAU, which position in the figure below is the best recommended position for the DCM module?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 24
Regarding the system architecture of NG WDM products, which of the following descriptions are correct? (Multiple choice)
- A. The L3 layer realizes routing exchange based on TCP/IP.
- B. NG WDM adopts LO+L1+L2+L3 architecture.
- C. The L1 electrical layer supports cross-scheduling of ODUk services.
- D. The L2 layer implements switching based on Ethernet/MPLS-IP.
- E. The LO optical layer supports multiplexing/demultiplexing of optical wavelengths and adding/dropping of DWDM optical signals.
Answer: C,D,E
NEW QUESTION # 25
Modulation is a process where the information of a signal source is processed and added to a carrier to make the information suitable for channel transmission. It is a technology where a carrier changes with a signal.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 26
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. False
- B. True
Answer: A
NEW QUESTION # 27
For a coherent system, the reference point of the fiber-in optical power in the non-standard fiber-in scenario is the output port of the optical amplifier board at the sending end.
- A. False
- B. True
Answer: B
NEW QUESTION # 28
When the bridge uses IV L learning mode. Create an entry in the MAC address table based on the original MAC address and original port of the data frame. This entry applies to all VLANs
- A. False
- B. True
Answer: A
NEW QUESTION # 29
When which of the following situations occurs, the ODUk_PM_DEG alarm will be reported on the network management?
- A. The ODU layer, that is, M, sets the bit error limit when the number of bit errors exceeds the specified bit error excess threshold
- B. ODUk TCM layer error code exceeds the threshold when the number of error codes exceeds the specified error degradation threshold
- C. When the number of bit error degradation in the ODU layer PM segment exceeds the specified error degradation threshold
- D. When the number of bit errors due to signal degradation at the ODUk TCM layer exceeds the specified excess bit error threshold
Answer: C
NEW QUESTION # 30
The gain wavelength of the fiber Raman amplifier is determined by the wavelength of the pump light. As long as the wavelength of the pump source is appropriate, the signal amplification of any wavelength can be theoretically obtained.
- A. False
- B. True
Answer: B
NEW QUESTION # 31
Which of the following paths have nothing to do with business?
- A. OCh
- B. ODUk
- C. Client
- D. OSC
Answer: D
NEW QUESTION # 32
What are the following steps for low-speed services to be multiplexed into high-speed SDH services? (Multiple choice)
- A. Positioning
- B. Overhead Insertion
- C. Mapping
- D. Multiplexing
Answer: A,C,D
NEW QUESTION # 33
Please drag the correct answer to the number in the picture.
Answer:
Explanation:
NEW QUESTION # 34
During CV/FFD, the ingress node transmits detection packets at a specific interval, and the egress node checks the number and content of these packets at an interval ( ) times the length of the detection packet transmission interval.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
The egress node checks received CV or FFD packets over any 3-second window when the ingress interval is 1 s (i.e., at three times the transmission interval).
NEW QUESTION # 35
Which of the following TU-AIS alarms are often encountered during network maintenance can trigger TU-AIS alarms? (Multiple choice)
- A. R-LOS
- B. AU-LOP
- C. HP-TIM
- D. 82-EXC
Answer: A,B,C
NEW QUESTION # 36
Which of the following descriptions about optical fibers is wrong?
- A. The loss of optical fiber mainly depends on three kinds of losses: absorption loss, scattering loss and bending loss.
- B. The diameter of multimode fiber is usually about 50m.
- C. The refractive index n1 of the core is greater than the refractive index n2 of the cladding.
- D. The diameter of single-mode fiber is generally greater than 10 μm.
Answer: B
NEW QUESTION # 37
In the SDH optical synchronous transmission system. Which of the following bytes is used to transmit the quality and usage information of the clock source?
- A. N1
- B. M1
- C. G1
- D. S1
Answer: D
NEW QUESTION # 38
The power SCADA business and communication interface of the power supply system is the () interface
Answer:
Explanation:
FE
NEW QUESTION # 39
In the WDM system, troubleshooting generally follows the principles of external first and then internal, first network and then network element, first () and then one-way, first advanced and then (), and first multi-wave and then single-wave.
Answer:
Explanation:
Two-way | low-level
NEW QUESTION # 40
Which of the following communication protocols are used for DCN management of Huawei equipment? (Multiple choice)
- A. TCP/IP
- B. FTP
- C. HWECC
- D. OSI
Answer: A,C,D
NEW QUESTION # 41
Which of the following statements is correct about the alarm caused by the mismatch? (Multiple choice)
- A. All of the above are correct
- B. J0 byte mismatch will generate RS-TNWM alarm
- C. C2 byte mismatch will generate HP-UNEQ alarm
- D. J1 byte mismatch may also cause service interruption
Answer: B,D
NEW QUESTION # 42
Which of the following statements about incident optical power commissioning are true? (Choose all that apply.)
- A. If the output optical power of the downstream OA still does not meet requirements, increase the gain of the downstream OA.
- B. If the output optical power of the downstream OA meets requirements in the case of the minimum pain, the upstream incident optical power cannot be lower than the incident optical power counters.
- C. By default, the incident optical power of each optical fiber is the special incident optical power (high power).
- D. If the output optical power of the downstream OA does not meet requirements in the case of the minimum gain, reduce the attenuation value of the upstream EVOA first to a value within the range required by incident optical power counters.
Answer: A,B,D
Explanation:
Ensuring the downstream OA's input is within the specified range by first reducing upstream EVOA attenuation is the standard first step when output power falls short at minimum gain.
If adjusting the EVOA does not bring the OA's output into spec, increasing the OA's gain is the next appropriate action.
When the OA meets output requirements at its minimum gain setting, the preceding fiber's incident power must be at or above the lower limit defined by the incident-power specifications.
NEW QUESTION # 43
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