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Huawei H31-311_V2.5 Exam Questions
HCIA-Transmission V2.5 (Page 5 )

Updated On: 23-Apr-2026
Page 5 of 41
PDF with 246 Questions

QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.

  1. True
  2. Error

Answer(s): A



Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).

  1. The source business board sends services to the main and standby crossover boards. .
  2. After the service cross-connection is completed, the active and standby cross-board sends the data of the primary cross-board to the receiving service board.
  3. The receiving service board can only receive data from the active cross-link board
  4. The bus of the two cross-connected modules works independently and does not interfere with each other. .
  5. Dual bus system structure indicates that the service board performs dual data transfer to the cross- connection side and selectively receives data on the cross-connection side. .
  6. Both cross-connecting plates have the same configuration. The service board will selectively receive services from one of them based on the quality of service and the status of the cross- connecting board. .

Answer(s): A,D,E,F



In WDM systems, it is ideal to use a dielectric thin problem filter (TFF) when using less than () wavelengths.

  1. 4
  2. 8
  3. 16
  4. 20

Answer(s): C



According to the formula "ODUk rate = 239/(239k) x STM-N frame rate", ODU4 The rate is equal to the 239/235xSTM-N Pa rate.

  1. True
  2. False

Answer(s): B



Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in 1:1 mode of the LMSP.

  1. True
  2. Error

Answer(s): A



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