[Dec 04, 2023] New Real H31-311_V2.5 Exam Dumps Questions [Q34-Q54]

Q34. The MAC loopback and PHY loopback are used for fault location. When the MAC loopback is set to in loop, the PHY loopback can be set according to the actual situation.

Q35. EPL services use bandwidth exclusively on the line, which is very safe. Dedicated line applications for VIP customers

Q36. PDM uses a polarization beam splitter to divide the laser into two vertical directions: x and y.

Q37. Frame-Mapped GFP (GFPF> is a processing mode that targets data encoding blocks such as Fibre Channel and ESCON.

Q38. Which of the following statements about overhead bytes is incorrect?

Q39. Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?

Q40. Which of the following is the main advantage of SDH? (Multiple choice).

Q41. The scope of management of OMSn is the path from the input optical port on the multiplexer unit of the sending site to the output optical port on the multiplexer unit of the receiving site, called the optical multiplexing segment (OMS) path.

Q42. For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude.

Q43. Which of the following are the service board types for MSTP devices? (Multiple choice).

Q44. Which of the following maintenance signals is transmitted from the downstream site to the upstream site of the OTN?

Q45. OTM nr.m consists of up to n ” multiplexed channels and does not support non-channel-related overhead. The letter “r” indicates a decrease in functionality.

Q46. When configuring LMSP, there are two switching modes: single-ended switching and double-ended switching. Single-ended switching does not require the protection protocol to be enabled.

Q47. The1310nm and 1550nm transmission windows are low loss windows. In DWDM systems, only the 1560m transfer window is used. Which of the following is the main cause?

Q48. In Recommendation ITU-T G.692, the allowable channel frequencies are based on the reference frequency (), and the channel spacing can be 100 GHz, 50 GHz or 25 GHz.

Q49. Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).

Q50. Which of the following is affected by changing the element ID of OSN3500 on NMS?

Q51. Optical module parameter “L-64.2” in the “2” indicates which of the following working windows?

Q52. Which of the following statements about the clock source are incorrect?

Q53. According to ITU-T’s recommendations, the requirement that the MSP switching time should be within 50ms is conditional. For example, the number of net elements on the entire ring network is less than 16.

Q54. Which of the following is the feature of TCM overhead in ODUk signals?