Cisco 400-051 Exam

What is the name of the logical channel proposal that is transmitted from the called entity to the calling entity in H.323 Fast Connect?

  • A. Forward Logical Channel
  • B. Backward Logical Channel
  • C. Reverse Logical Channel
  • D. Originator Logical Channel
  • E. Destination Logical Channel
Answer: Option C.
Explanation: 

Unlike the OpenLogicalChannel request used by H.323 for video uni-directional logical channels, the request used by H.324 for opening video bi-directional logical channels specifies the temporalSpatialTradeOff Capability in both the forward and reverse directions–in the forwardLogicalChannelParameters.dataTypeandreverseLogicalChannelParameters.dataType components, respectively. The semantics of temporalSpatialTradeOffCapability used in forward LogicalChannelParameters.dataType is described in the previous section. The semantics for its presence in the reverse direction is described in this section.

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