Latest Huawei H31-341_V2.5 Exam questions and answers
ExamTorrent H31-341_V2.5 Exam Practice Test Questions (Updated 122 Questions)
NEW QUESTION # 52
Incoherent systems need to physically compensate DCK to solve the dispersion problem. The following descriptions about the position of DCM in the network and optical power requirements, which options are correct? (Multiple choice)
- A. For the OBU amplifier scenario, the DCM can be placed before the IN port of the OBU board
- B. For the OAU amplifier scenario, the DCM can be placed between the TDC-RDC ports of the OA board
- C. DCM is a purely passive device and has no requirement for single-wavelength optical power
- D. For the OBU amplifier scenario, the DCM can be placed after the OUT port of the OBU board
Answer: A,B,C
NEW QUESTION # 53
Which of the following descriptions about optical line protection and ODUk SNCP protection is wrong?
- A. Optical line protection is switched by the OLP board, and ODUk SNCP protection is switched by the cross-connect board
- B. Optical line protection and ODUk SNCP protection are both single-ended switching. When a single fiber fails, the sending and receiving routes will be inconsistent
- C. Optical line protection belongs to network-level protection, and ODUk SNCP belongs to service-level protection
- D. The switching time of optical line protection and ODUk SNCP protection is less than 50 ms. In order to avoid cable disconnection, multiple switching is triggered, and the two protections cannot coexist
Answer: D
NEW QUESTION # 54
Which of the following is the meaning of "L" in the optical module parameter "L-642"?
- A. Receiving wavelength
- B. Transmission distance
- C. Dispersion coefficient
- D. Emission wavelength
Answer: B
NEW QUESTION # 55
The CLASS 1M mark on the optical module indicates that the luminous power is low and will not cause damage to eyes or skin.
- A. False
- B. True
Answer: A
NEW QUESTION # 56
When creating a new network element, which of the following are the optional data configuration methods? (Multiple choice)
- A. Initialize network element data and perform manual configuration
- B. Copy network element data
- C. Upload
- D. to download
Answer: A,B,C
NEW QUESTION # 57
Which of the following descriptions about TunnelAPS protection is wrong?
- A. TunnelAPS is end-to-end protection at the Tunne1 level.
- B. Since the link layer detection method of TunnelAPS is performed through MPLS-TP OA, before creating APS protection, MPLS-TP OAM of Tunne1 needs to be enabled.
- C. Tunne1APS is a function to protect Tunne1 based on the APS protocol.
- D. TunnelAPS 1+1 switching only supports double-ended switching.
Answer: D
NEW QUESTION # 58
Which of the following statements about the safe use of optical fiber is wrong?
- A. To clean the optical fiber connector and the optical interface of the laser, special cleaning tools and materials must be used
- B. When the received optical power is too high, an optical attenuator is required
- C. The optical subtractor can only be added to the "IN" port, not to the "OUT" port
- D. The light emitted by the laser is infrared light and is not strong, so you can point the connector at the human eye to observe whether there is light or not.
Answer: D
NEW QUESTION # 59
When the working channel of optical line protection fails, it cannot be automatically switched to the protection channel. Which of the following are the possible reasons? (Multiple choice)
- A. Waiting for recovery time is set too long
- B. Wrong configuration of protection group parameters
- C. Faulty protection channel
- D. Artificially issued a lock order
Answer: A,B,C,D
NEW QUESTION # 60
Which of the following is a functional unit that provides a high-speed signal interface and processes the corresponding signal?
- A. Cross-connect unit
- B. Line units
- C. Tributary units
- D. Auxiliary units
Answer: B
NEW QUESTION # 61
Which layer is the TCP/UDP protocol located in the TCP/IP protocol?
- A. Data Link Layer
- B. Transport layer
- C. Application layer
- D. Network layer
Answer: B
NEW QUESTION # 62
Which of the following descriptions about circuit boards is wrong? (Multiple choice)
- A. N401: 1 x 100 Gbit/s line service processing board
- B. N210: 10 x 10 Gbit/s line service processing board
- C. N602: 2-way 400G line service processing board
- D. N502: 2-way 200G line service processing board (CFP)
Answer: C,D
NEW QUESTION # 63
64K SNCP protection is used to protect 64K services. Which of the following configurations can support 64K SNCP protection? (Multiple choice)
- A. DXM with DX1
- B. DXM with AT8
- C. DXM with FXSO12
- D. DXM with AT6
Answer: A,B,C,D
NEW QUESTION # 64
Which of the following are the service board types of MSTP equipment? (Multiple choice)
- A. Interface board
- B. Auxiliary board
- C. Service Processing Board
- D. Service processing board with interface
Answer: A,C,D
NEW QUESTION # 65
To prevent the optical power at the receive end of an OTU board from being excessively high, you must configure a fixed attenuator according to the actual optical power. The fixed attenuator is usually configured at the transmit end.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
The fixed attenuator is usually configured at the receive end, not the transmit end, to prevent the optical power at the receive end of an OTU (Optical Transport Unit) board from being excessively high. High optical power at the receiver can cause signal distortion or damage the receiver module. Configuring the attenuator at the receive end ensures that the incoming signal power is within the optimal sensitivity range of the receiver.
Configuring attenuators at the transmit end is generally ineffective because it reduces power output before transmission, potentially reducing reach. This approach aligns with HCIP-Transmission best practices for optical power management and receiver protection.
NEW QUESTION # 66
On an OTN network, a large number of bit errors occurred on multiple waves. The 0TU board reports alarms such as OTUk EXC, OTUK_DEG, BEFFEC_DEC, B1_EXC, and B1_SD. What is the reason for the impossibility?
- A. The ambient temperature is too high
- B. DCM module configuration is unreasonable
- C. The AST2 board is faulty
- D. The pigtail loss of the multiplexing part is too large
Answer: B
NEW QUESTION # 67
Which of the following is not a function of RSVP-TE?
- A. LSP deletion
- B. LSP path optimization
- C. LSP rerouting
- D. Establishing Neighborhood Relationships
Answer: D
NEW QUESTION # 68
When a GE service is encapsulated into an OTN frame structure and an SDH frame structure, the alarms reported by client-side devices are different.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
When a GE (Gigabit Ethernet) service is encapsulated into an OTN frame or an SDH frame structure, the client-side alarms reported are not different; they are consistent regardless of the encapsulation method. This consistency ensures reliable fault detection and service monitoring across different transport technologies.
HCIP-Transmission specifies that client alarms depend on service and interface definitions rather than the underlying framing, ensuring seamless interoperability and troubleshooting in multi-protocol environments.
NEW QUESTION # 69
Which of the following are the classification of Ethernet performance test? (Multiple choice)
- A. Custom Tests
- B. Network Equipment Performance Verification Test
- C. Network performance testing
Answer: A,B,C
NEW QUESTION # 70
In MRPS protection, when a fault occurs, the Raw label is swapped into a Rap label and switched to the protection channel.
- A. False
- B. True
Answer: A
NEW QUESTION # 71
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