Online Access Free H31-321 Exam Questions

What path levels are available in an NG-SDH system?

• A.VC-4
• B.vc-11
• C.vc-3
• D.vc-12
• E.VC-4-XC (X = 4, 8, 16, 64)

Latency of store-and-forward equipment is the difference between the time the first bit of a data frame enters the equipment and the time the first bit exits the equipment.

• A.TRUE
• B.FALSE

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.

You need to plan the MS when gold services exist on an ASON network. Which of the following are true about MS planning?

• A.Services should be evenly distributed in an MS. Avoid high bandwidth utilization in certain portion of an MS but low bandwidth utilization in other portion of the MS.
• B.If only a few gold services exist, upgrade the gold services to diamond services.
• C.The MS should cover all nodes on which gold services are required to be configured. Multiple MSs can be used to cover more nodes on a complex network.
• D.If the gold services take up less than half of the optical path resources, set part of the MS for the gold services, in other words, only part of the VC-4 resources on the MS are allocated for the gold services.

Which of the following may cause abnormal ECC communication?

• A.The two interconnected optical boards have different rates.
• B.The DCC bytes of the optical board have been deleted.
• C.The local NE uses Dl to D3, but the peer NE uses D4 to D12.
• D.The local NE uses Dl to D3, but the peer NE uses Di to D3 and D4 to D12.
• E.The optical port reports the B3_SD alarm. What may cause the HPJ.OM alarm?