[2026] Use Valid New H31-341_V2.5-ENU Questions - Top choice Help You Gain Success
H31-341_V2.5-ENU Exam Practice Materials Collection
NEW QUESTION # 61
MPLS technology introduces the concept of connection-oriented label switching on the connectionless IP network, and integrates IP technology and ATM label switching technology.
- A. False
- B. True
Answer: B
NEW QUESTION # 62
The NG WDM electrical layer service board supports compatibility mode and standard mode. Compared with the compatibility mode, the standard mode single board only displays the service mapping path under the channel or physical port on the network management, so the standard mode has fewer path levels and is easy to operate.
- A. False
- B. True
Answer: B
NEW QUESTION # 63
Which of the following options are commonly used test instruments for transmission systems? (Multiple choice)
- A. Optical power meter
- B. SDH tester
- C. Spectrum Analyzer
- D. OTDR (Optical Time Domain Reflectometer)
- E. SmartBits Tester
Answer: A,B,C,D,E
NEW QUESTION # 64
What are the basic requirements of the DWDM system for the light source? (Multiple choice)
- A. The output wavelength is relatively stable
- B. The method of direct modulation should be used
- C. Using LEDs
- D. Relatively high dispersion tolerance
Answer: A,D
NEW QUESTION # 65
Which of the following is the number of VLANs that QINQ technology can provide?
- A. 1024*1024
- B. 4095*4095
- C. 4096*1024
- D. 0
Answer: B
NEW QUESTION # 66
After starting the extended SSM protocol, in addition to judging the clock quality level and priority, the clock ID will also be judged. After the network element receives the clock signal with ID, if it is judged that the clock signal is sent by the station, the source is considered unavailable. In this way, the network element can still recognize the clock signal sent by itself even after being transmitted by multiple stations, preventing the formation of a timing loop.
- A. False
- B. True
Answer: B
NEW QUESTION # 67
Which of the following description about 1+1 and 1:1 optical line protection is wrong? (Multiple choice)
- A. According to the location of the OLP board in the network, 1+1 optical line protection can be divided into 1+1OMS path protection and 1+1OTS path protection
- B. The main difference between 1:1 optical line protection and 1+1 optical line protection is whether the APS protocol is required
- C. The switching mode of 1:1 optical line protection can only be double-ended switching
- D. The protection boards used in 1+1 optical line protection and 1:1 optical line protection are the same
Answer: A,B,D
NEW QUESTION # 68
For a typical fixed WDM system, the channel spacing is N*5Oghz, for a WDM system based on the FlexGrid optical platform, the channel spacing is N*12.5Ghz.
- A. False
- B. True
Answer: B
NEW QUESTION # 69
Which of the following descriptions about the PWE3 network reference model is wrong?
- A. CE cannot perceive whether the simulated service or the local service is being used
- B. PES establishes a point-to-point channel, the channels are isolated from each other, and the user=layer messages are transparently transmitted between them.
- C. Tunnel is a mechanism for transparently carrying information on the network. It is used to carry P7. A tunnel can only support one PW
- D. PE is located at the edge of the operator's network and is a device that provides PWE3 to CE
Answer: C
NEW QUESTION # 70
Which of the following types of E-Line services are supported by MS-OTN packet equipment? (Multiple choice)
- A. VLAN-based E-Line service
- B. E-Line carried by PW
- C. E-Line service for point-to-point transparent transmission
- D. E-Line service based on QinQ
Answer: A,B,C,D
NEW QUESTION # 71
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 # 72
The business path belongs to the network layer data on the network management side. Deleting the path at the network layer will not affect the business.
- A. False
- B. True
Answer: A
NEW QUESTION # 73
HWECC uses D1-D3 bytes as the physical transmission channel, and cannot use D4-D12 as the physical transmission channel.
- A. False
- B. True
Answer: A
NEW QUESTION # 74
Which of the following alerts will not trigger an AU-AIS alert?
- A. B2_EXC
- B. R_LOS
- C. MS_AIS
- D. AU_LOP
Answer: D
NEW QUESTION # 75
When configuring i Ethernet Layer 2 attributes, when the "TAG ID" is set to "Accese" or "Hybrid", you need to set the "Default VLAN ID" and "VLAN Priority" of untagged frames. "VLAN Priority" should be set according to the unified QoS plan.
- A. False
- B. True
Answer: B
NEW QUESTION # 76
The basic principle of fault location is to accurately locate the fault to a single station or even a single board.
- A. False
- B. True
Answer: B
NEW QUESTION # 77
When testing the overload point and sensitivity of the IN port of the OTU board, which of the following is unnecessary?
- A. Optical power meter
- B. Attenuator
- C. OTDR measuring instrument
- D. SDH Analyzer
Answer: D
NEW QUESTION # 78
Which of the nonlinear effects does the RAMAN amplifier use?
- A. Four-wave mixing
- B. Dispersion
- C. Stimulated Raman scattering
- D. Self-Phase Modulation
Answer: C
NEW QUESTION # 79
Which of the following devices does not support PCM features?
- A. OSN 550
- B. OSN 2500
- C. OSN 7500
- D. OSN 3500
Answer: B
NEW QUESTION # 80
It is not recommended to configure the EPLAN service as a ring. If the EPLAN business is configured as a ring network, the STP protocol must be enabled on the network to prevent broadcast storms.
- A. False
- B. True
Answer: B
NEW QUESTION # 81
Some SNCP protection switching conditions are default. For example, AUAIS and TUAS. Other conditions are optional. For example, HP-TIM and HP-SLM. Optional conditions can be flexibly set according to the service level.
- A. False
- B. True
Answer: B
NEW QUESTION # 82
In the link dynamic aggregation scenario, which of the following descriptions about the possible state of the port is correct? (Multiple choice)
- A. Unselected
- B. Selected
- C. Active
- D. Standby
Answer: A,B
NEW QUESTION # 83
Which of the following performances do not need to be evaluated when expanding the wavelength division system of the existing network?
- A. Bit error rate before error correction of OTU at the receiving end
- B. Optical power flatness at the receiving end (with MCA configured)
- C. PMD parameters of the link
Answer: C
NEW QUESTION # 84
In CV/FFD detection, the Ingress node sends a detection message at a certain period, and the Egress node uses how many times the sending cycle as the detection cycle, detect the number of received detection messages and the content of the message?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 85
When light passes through a passive optical device, it will cause a drop in optical power. This loss is called the insertion loss of the device.
- A. False
- B. True
Answer: B
NEW QUESTION # 86
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