[Jun-2026] Download Real H31-341_V2.5-ENU Exam Dumps for candidates. 100% Free Dump Files

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Huawei H31-341_V2.5 certification exam is a challenging exam that requires a high level of knowledge and expertise in the field of transmission technologies. Candidates must have a strong understanding of transmission principles, networking technologies, and network planning and design, as well as hands-on experience in deploying and maintaining transmission networks. Candidates who pass H31-341_V2.5-ENU exam will be recognized as experts in the field of transmission technologies and will be able to take on advanced roles in their organizations.

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NEW QUESTION # 66
Which port of the M40 is the output of the 3THz wavelength OTU single board connected to?

• A. 0
• B. 1
• C. 2
• D. 3

Answer: D

NEW QUESTION # 67
In the WDM system, what are the reasons that can cause large fiber attenuation and high bit error rate? (Multiple choice)

• A. Fiber damage
• B. Fiber Aging
• C. Fiber bending
• D. Fiber break

Answer: A,B,C

NEW QUESTION # 68
Which of the following statements about pointer adjustment is correct? (Multiple choice)

• A. When the pointer is being adjusted, the information payload in the information payload area will decrease
• B. Pointer adjustments have nothing to do with payload content
• C. The information payload in the information payload area will not change when the pointer is not adjusted
• D. When the pointer is being adjusted, the information payload in the information payload area will increase

Answer: A,C

NEW QUESTION # 69
Which of the following descriptions about equipment heat dissipation is correct? (Multiple choice)

• A. Subrack temperature can be monitored on the network management
• B. Clean the dust filter of the fan box regularly
• C. There should be no debris in the cooling holes on the subrack, such as 2M cables, pigtails, etc.
• D. Daily check whether the board is hot and whether the air volume of the subrack vents is large

Answer: A,B,C,D

NEW QUESTION # 70
The frame period of the OTN signal is fixed. It is the same as the frame period of the SDH signal.

• A. False
• B. True

Answer: A

NEW QUESTION # 71
MAC forwarding table: contains which of the following items? (Multiple choice)

• A. If the VLAN is divided on the switch, it also includes the VLAN ID
• B. MAC address
• C. AIP address
• D. A port number or set of port numbers

Answer: A,B,D

NEW QUESTION # 72
When the input optical power of the amplifier of the OAU at the receiving end is lower than the nominal optical power, which of the following operations are wrong?

• A. Set the OAU gain to make its output reach the nominal value
• B. Adjust the adjustable optical attenuation before the receiver amplifier to increase the input optical power of the amplifier
• C. Increase the sending optical power of the sending end
• D. When the input optical power cannot be increased by adjusting the adjustable attenuator, the adjustable attenuation at the input end of the amplifier should be suppressed

Answer: C

NEW QUESTION # 73
Loopback is a common operation in routine maintenance and troubleshooting. Which of the following statements about loopback operations are true?

• A. A hardware loopback is manually performed on optical and electrical ports using pigtails and self-loop cables respectively.
• B. After an outloop is performed, signals flow into the local WDM NE.
• C. After an inloop is performed, signals are transmitted out of the local WDM NE.
• D. After an inloop is performed, signals are transmitted out of the local WDM NE.

Answer: B,C,D

Explanation:
In an outloop (external loopback), the transmitted signal is sent out of the NE and then looped back into its receive port, so signals flow into the local WDM NE.
Hardware loopback on optical ports uses pigtail jumpers, and on electrical ports uses self-loop cables, both performed manually.
When performing optical hardware loopback, adding an optical attenuator is necessary to prevent excessive return power from damaging the transmitter.

NEW QUESTION # 74
The calculation of BIP-8 belongs to one of the source functions of the OTUk layer.

• A. False
• B. True

Answer: B

NEW QUESTION # 75
Which of the following descriptions about the MPLS architecture is correct? (Multiple choice)

• A. The main application of MPLS technology is to build a tunnel to carry various types of services (such as TDW, Ethernet) transmitted by PWE3, and realize end-to-end transmission of services in the packet network
• B. The forwarding plane is also called the data plane. It is connectionless-oriented and adds and deletes labels to packets. At the same time, the received packet data is forwarded according to the label forwarding table
• C. MPLS uses short and fixed-length labels to encapsulate packet messages, and realizes fast forwarding on the forwarding plane
• D. The control plane is connection-oriented and is responsible for label allocation, establishment of label forwarding tables, establishment and removal of label switching paths, etc.

Answer: A,C

NEW QUESTION # 76
Which of the following description about the Optix OSN 9800 subrack is correct? (Multiple choice)

• A. In the OSN 9800 U32 subrack, IU70 is the active CTU and IU78 is the backup CTU.
• B. The OSN 9800 U16 subrack has a total of 16 service slots. These slots have the same capacity, and the maximum support for a single slot is 400bit/s ODUk crossover.
• C. When the OSN 9800 general platform subrack is used as a slave subrack, the main control board must be placed.
• D. Only when the OSN 9800 P18 is used as a slave subrack, the IU18 slot can be inserted with a service board.

Answer: A,B,D

NEW QUESTION # 77
Which of the following communication protocols are used for DCN management of Huawei equipment? (Multiple choice)

• A. FTP
• B. TCP/IP
• C. OSI
• D. HWECC

Answer: B,C,D

NEW QUESTION # 78
Which of the following is the meaning of "L" in the optical module parameter "L-642"?

• A. Transmission distance
• B. Receiving wavelength
• C. Dispersion coefficient
• D. Emission wavelength

Answer: A

NEW QUESTION # 79
Which of the following comparisons between commonly used optical fibers G.652 and G.655 is correct? (Multiple choice)

• A. The attenuation coefficient of DG52 is lower than that of G.655
• B. G52 can withstand higher fiber input power than G.655
• C. G52 has a larger core diameter than G.655
• D. The chromatic dispersion coefficient of BG52 is smaller than that of G.655

Answer: B,C

NEW QUESTION # 80
Which of the following belongs to the optical layer part of the OTN frame structure? (Multiple choice)

• A. OMS
• B. OPUk
• C. OCh
• D. ODUk

Answer: A,C

NEW QUESTION # 81
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