Huawei H31-321 Online Practice Questions and Exam Preparation

Huawei H31-321 Online Questions & Answers

• Question 61:

  On a chain network, if the SCC board on an intermediate station becomes faulty and the line boards of the station are installed in paired slots, which of the following methods can be used to ensure normal ECC communication between the other stations?

  A. Reseat the faulty SCC board.
  B. The D byte can automatically pass through, because a protection overhead bus is available between the paired slots. Therefore, no extra operation is required.
  C. Remove the faulty SCC board.
  D. Delete the faulty SCC board on the NMS.
  C. Remove the faulty SCC board.

• Question 62:

  Which of the following are true about the NE ID of an ASON NE?

  A. Each NE ID must be unique in an ASON domain.
  B. The NE ID and IP address of an NE must be in different network segments.
  C. NE IDs must be set before the ASON feature is enabled. After the NE ID of an NE is configured, the NE will not warm reset.
  D. NE IDs, NE IDs, and NE IP addresses are independent from each other.
  E. NE IDs and IP addresses must be in the same format. An NE ID cannot be 0.0.0.0,1.2.3.4, or 255.255.255.255.
  A. Each NE ID must be unique in an ASON domain.
  B. The NE ID and IP address of an NE must be in different network segments.
  D. NE IDs, NE IDs, and NE IP addresses are independent from each other.
  E. NE IDs and IP addresses must be in the same format. An NE ID cannot be 0.0.0.0,1.2.3.4, or 255.255.255.255.

• Question 63:

  Which tools or meters must you prepare before commissioning SDH equipment?

  A. Spectrum analyzer
  B. SDH analyzer
  C. Optical attenuator
  D. BER tester
  E. Oscilloscope
  F. Multimeter
  B. SDH analyzer
  C. Optical attenuator
  D. BER tester
  F. Multimeter

• Question 64:

  Which of the following about ECC channels are true?

  A. The establishment of an ECC route requires dual transmission of requests at the transmit station. You can select route establishment mode on the transmit station.
  B. An ECC route is established on the shortest path.
  C. An ECC route is a geographical distance.
  D. An ECC route is a logical distance and refers to the total number of hops between stations.
  B. An ECC route is established on the shortest path.
  D. An ECC route is a logical distance and refers to the total number of hops between stations.

• Question 65:

  Which of the following parameters can uniquely identify an ASON NE in an ASON domain?

  A. NEID
  B. NE IP address
  C. NEID
  C. NEID

• Question 66:

  Network-level protection switching must be tested during system commissioning for OptiX OSN 3500. Which of the following will trigger protection switching on a ring network?

  A. Perform a loopback (LB) test.
  B. Shut down the laser.
  C. Disconnect fibers.
  D. Power off the equipment.
  B. Shut down the laser.
  C. Disconnect fibers.
  D. Power off the equipment.

• Question 67:

  Generally, what is the maximum number of NEs on an ECC subnet, to ensure communication performance of an ECC subnet?

  A. 64
  B. 96
  C. 128
  D. 256
  A. 64

• Question 68:

  What may cause the HP_LOM alarm?

  A. Services are not configured on upstream NEs.
  B. The service level is set inconsistently at both ends.
  C. The C2 byte to be transmitted on the terminal NE is 0x00, and the pass-through NEs are set to pass through the overhead.
  D. The board (for example, a cross-connect board) is faulty, resulting in loss of the H4 byte or incorrect H4 byte.
  B. The service level is set inconsistently at both ends.
  D. The board (for example, a cross-connect board) is faulty, resulting in loss of the H4 byte or incorrect H4 byte.

• Question 69:

  On NG-SDH equipment, when a cross-connect board that is configured with equipment-level protection (such as TPS, BPS, PPS, and DLAG) is replaced, the services carried by the board will not be interrupted.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 70:

  Alarm suppression applies to intra-board alarms. When alarms of different severity levels are generated, the alarm of a higher severity level suppress the alarm of a lower severity level.

  A. TRUE
  B. FALSE
  B. FALSE