2025年12月本日更新されたH31-341_V2.5-ENU試験問題集PDF試験エンジン無料！ [Q65-Q90]

2025年12月本日更新されたH31-341_V2.5-ENU試験問題集PDF試験エンジン無料！

こちらには最新版のH31-341_V2.5-ENUリアル試験解答！

質問 # 65
SOM (Smart Optical Management) is only an optical tube system, which can realize centralized configuration of optical and electrical layer parameters.

A. False
B. True

正解：A

質問 # 66
Equipment maintenance personnel can judge whether the equipment has ever failed by observing the indicator lights on site. But the disadvantage of this method is that the information is vague and inaccurate.

A. False
B. True

正解：B

質問 # 67
In the WDM network design, as long as enough EDFAs are cascaded to compensate the optical power loss in the transmission process. Then the system can transmit very long distance without limitation.

A. False
B. True

正解：A

質問 # 68
FXS and FXO are the names of ports used by analog telephone lines. FXO and FXS are always used in pairs.

A. False
B. True

正解：B

質問 # 69
Which of the following descriptions about OptiXtrans E6600/OptiX OSN 1800 is correct?

A. The OptiXtrans E6608/OptiX OSN 1800II Pro DC chassis can accommodate up to 7 service boards.
B. When the OptiXtrans E6616/OptiX OSN 1800 V Pro uses the TMK5SXCH cross-connect board, the current maximum capacity of the single-slot ODUk is 400 Gbit/s.
C. OptiXtrans E6616/OptiX OSN 1800 V Pro adopts MS-OTN unified switching, has a large service access capacity, can realize the scheduling of electrical layer signal service convergence nodes, and enhance network flexibility.
D. The OptiXtrans E6608/OptiX OSN 1800II Pro fan box adopts a right-in and left-out exhaust cooling method.

正解：C

質問 # 70
NG WDM system fault analysis methods include signal flow analysis method, alarm analysis method, instrument test method, () and replacement method.

正解：

解説：
Loopback method

質問 # 71
If the intermediate leveling method is used, the adjustment target of the single-wavelength optical power at the transmitting end and the receiving end is to keep the flatness of the single-wavelength input optical power within the range of the nominal single-wavelength input optical power?

A. ±4dB
B. ±2dB
C. ±3dB
D. ±1dB

正解：C

質問 # 72
The 5A deployment of OptiXtrans DC908 refers to port self-adaptation, fiber self-discovery, fiber self-discovery, wavelength self-configuration, and optical layer self-commissioning.

A. False
B. True

正解：B

質問 # 73
Which of the following description of Tunnel APS protectionis wrong?

A. The Tunnel APS 1+1 switching type only supports double-ended switching.
B. Because the link layer detection method of Tunnel APS is performed through MPLS-TPOAM, before creating APS protection, you need to enable Turmel's NPLS-TPOAM.
C. Tunnel APS is tunnel-level end-to-end protection.
D. Tunnel APS is a tunnel protection function implemented based on the APS protocol.

正解：B

質問 # 74
1: N-linear multiplex section switching requires the APS switching protocol; equipment from different manufacturers may be different due to protocol processing, and may not be interconnected.

A. False
B. True

正解：B

質問 # 75
In a 25GMSP ring consisting of four MSTP stations. When protection switching occurs, which of the following statements about alarm reporting are correct?

A. PS alarms are reported on the tributary board
B. Report APS-INDI alarm on board
C. Report the APS-INDI alarm on the system dashboard
D. APS-INDI alarm reported on XCS board

正解：D

質問 # 76
Which of the following statements about the U2000 license is wrong?

A. Each license file corresponds to the equipment serial number (ESN) of a 2000 computer, so it can only be used on the corresponding computer
B. The U2000 license file is named in "OXdat format
C. Official U2000 licenses vary by operating system platform. You must apply for a U2000 license based on a specific operating system
D. Do not modify the license file, otherwise the license file will fail

正解：C

質問 # 77
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

正解：A

質問 # 78
G707 multiplexing circuit diagram can only multiplex 2M\34M\140M signals into STM-N.

A. False
B. True

正解：A

質問 # 79
In the WDM system, if the receivable TTI and the actual received TTI of the SM layer are inconsistent, will a () alarm be reported?

正解：

解説：
OTUK-TIM

質問 # 80
It mainly completes the point-to-point voice communication between adjacent stations, without dialing, and it can be connected immediately after off-hook. This PCM service is called?

A. FXS Hotline Service
B. Sub-rate service
C. Z interface extension service
D. E&M relay service

正解：A

質問 # 81
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

正解：A

解説：
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.

質問 # 82
The special fiber input power (high power) is higher than the main fiber input power. The main purpose is to improve what factor?

A. power
B. OSNR
C. Nonlinear
D. Dispersion

正解：B

質問 # 83
In order to meet the specified synchronization quality requirements, corresponding requirements must be made on the network for synchronous transmission, and the specified networking rules must be followed during network planning. Which of the following is wrong?

A. In one clock transmission direction, the number of stations between the transit office clocks cannot exceed 30
B. The number of switching office clocks cannot exceed 10
C. The total number of devices in one direction cannot exceed 60

正解：A

質問 # 84
Which of the following descriptions about the function of MPLSOAM is wrong?

A. FDI can suppress other alarms of Egxes nodes and can indicate the fault location
B. It can effectively detect, identify and locate the defects of PLS network
C. CV/FFD is used to detect the connectivity of Tunnel and PW
D. The Ping function can accurately locate the faulty node

正解：D

質問 # 85
The maximum cross-connect capacity of a single slot of the OSN 8800T32 enhanced subrack is?

A. 400Gbit/s
B. 40Gbit/s
C. 100Gbit/s
D. 200Gbit/s

正解：C

質問 # 86
Which of the following descriptions about multiplexing is correct? In the process of byte interleaved multiplexing, the information payload and pointer bytes of each frame are interleaved and multiplexed according to the original value. The segment overhead will also be correspondingly of multiplexing?

A. There will be 4 times the overhead in STM-1 in STM-4
B. The overhead number in STM-4 is the same as in STM-1
C. The overhead in STM4 is newly integrated and has only one set of overhead
D. Overhead random generation in STM-4

正解：C

質問 # 87
When super 100G/100G and 10G are mixed adjacently, the optical power of super 100G/100G signal should be higher than that of 10G signal, but it should not be higher than the single-wave nominal value of the optical amplifier board.

A. False
B. True

正解：B

質問 # 88
In the same subnet, when configuring NNI port attributes, the IP addresses of the ports at both ends of different links can be repeated.

A. False
B. True

正解：B

質問 # 89
In an OA-free system, the lower threshold of the receive optical power of a line board or the WDM side of an OTU board Is the optical module's receiver sensitivity plus 3 dB.

A. FALSE
B. TRUE

正解：B

解説：
In OA-free systems, where no optical amplifiers are used, the lower threshold of the receive optical power of a line board or the WDM side of an OTU board is indeed the optical module's receiver sensitivity plus 3 dB.
This ensures a safety margin for stable signal reception and alarm triggering. Without optical amplifiers, signal levels are more susceptible to attenuation, so maintaining this margin helps prevent degradation due to low optical power. HCIP-Transmission highlights this threshold as a standard parameter for optical power management in non-amplified systems.

質問 # 90
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