Huawei H31-311_V2.5 Practice Exams
Last updated on Apr 07,2025- Exam Code: H31-311_V2.5
- Exam Name: HCIA-Transmission V2.5
- Certification Provider: Huawei
- Latest update: Apr 07,2025
Which subtype of tributary SNCP protection requires no electrical relay station in the subnet along which the ODUk signal passes?
- A . SNC/N
- B . SNC/S
- C . SNC/I
TNG 1N401 board supports mixed transmission of multiple ODUk particles.
- A . True
- B . False
In OTN, which of the following maintenance signals is transmitted from the downstream site to the upstream site?
- A . AIS
- B . LCK
- C . IAE
- D . BDI
Which of the following options are correct regarding 1:1 optical line protection? (Multiple choice)
- A . 1:1 fiber protection can be set to single-end switching or double-end switching
- B . 1:1 protection only supports dual-end switching
- C . 1:1 optical line protection requires APS protocol
- D . 1:1 optical line protection does not use the method of splitting the optical signal into two paths, but uses an auxiliary light source to emit light, so the insertion loss introduced is smaller than that of 1+1 protection.
The frame rate of STM-1, STM-4, STM-16, and STM-64 signals is the same 8000 frames per second.
- A . True
- B . False
Compared with traditional SDH and SONET equipment, which of the following advantages does OTN have? (Multiple choice)
- A . Meeting the transmission bandwidth requirement of each optical Tb/s through wavelength division function
- B . Provide 2.7Gb/s, 10.7Gb/s, 43Gb/s and even 111.8Gb/s high-speed interfaces
- C . Provides up to 5 levels of nested TCM connection monitoring
- D . Support special virtual cascade transmission mode to improve and optimize the network structure
- E . provides powerful out-of-band FEC function, effectively ensuring line transmission performance
OTN technology is developed based on SDH and WDM technology, and combines the advantages of both technologies.
- A . True
- B . False
Number of signal bytes/frame rate of signal = ()
R-LOS, R-LOF, AU-AIS, and TU-AIS alarms are all generated and reported on the circuit board.
- A . True
- B . False
A. U-PTR is an indicator used to indicate the position of the information net load in the STM-N frame, so that the receiving end can correctly separate the information net load according to the value of this position indicator (pointer value). Therefore, as long as the pointer points to the information net load area, the receiving end can correctly separate the service signal.
- A . True
- B . False