Huawei H31-311 Online Practice Questions and Exam Preparation

Huawei H31-311 Online Questions & Answers

• Question 71:

  The last 256 columns in the OTN frame structure are FEC areas, which are used for forward error correction.

  A. TRUE
  B. FALSE
  A. TRUE

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• Question 72:

  In the system control unit, which of the following databases do not lose data after a power failure? (Choose two)

  A. MDE
  B. DRDB
  C. FDB0
  D. FDB1
  C. FDB0
  D. FDB1

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• Question 73:

  Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?

  A. Wavelength conversion technology
  B. Optical amplification technology
  C. Multiplexing/Demultiplexing technology
  D. Optical supervisory technology
  A. Wavelength conversion technology

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• Question 74:

  Which of the following is the maximum number of OSN 3500 subracks that can be installed in a 2.2 m cabinet?

  A. 1
  B. 2
  C. 3
  D. 4
  B. 2

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• Question 75:

  In a transmission network upgrade, which optical parameter must be evaluated before increasing channel rate? (Choose three)

  A. OSNR
  B. Nonlinear tolerance
  C. Fiber type and dispersion
  D. IP MTU size
  A. OSNR
  B. Nonlinear tolerance
  C. Fiber type and dispersion

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• Question 76:

  An unprotected chain consists of four NEs: NE1, NE2, NE3, and NE4. An end-to-end VC4 trail NE1--NE4 is created, and NE5 is added between NE2 and NE3 for capacity expansion. The original configuration remains unchanged, and no service is configured on NE5. In this case, the unprotected chain becomes NE1-NE2-NE5-NE3-NE4, and how many VC4 trails can be searched out?

  B. 1
  C. 2
  D. 3
  C. 2

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• Question 77:

  Which of the following is not an EVPLAN feature?

  A. Bandwidth sharing
  B. Forwarding based on MAC addresses
  C. Point-to-point and point-to-multipoint topologies
  D. Multipoint-to-multipoint topology
  C. Point-to-point and point-to-multipoint topologies

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• Question 78:

  For devices that support multiple transmission rates and working modes, the ____ mechanism can be used to determine the optimal communication mode between two connected devices.

  autonegotiation

• Question 79:

  When the rate of an SNCP ring consisting of four OptiX OSN 2500 devices is 2.5 Gbit/s, the service capacity of this network can carry a maximum number of ( ) 2 Mbit/s signals.

  A. 504
  B. 1008
  C. 2016
  D. 4032
  B. 1008

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• Question 80:

  To ensure high-quality timing distribution in a mobile transport network, which technologies are suitable? (Choose three)

  A. Synchronous Ethernet
  B. IEEE 1588v2 PTP
  C. Manual time adjustment
  D. GPS reference input
  A. Synchronous Ethernet
  B. IEEE 1588v2 PTP
  D. GPS reference input

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