CCNA 640-802 WAN Practice Questions

Frame Relay PVC and SVC

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Q5. Frame Relay supports which of the following?

Ans.C

Expl.: Frame Relay supports two type of virtual circuits (VCs):

1. Permanent Virtual Circuits (PVCs) _ these are permanently established connection that are used for frequent and consistent data transfers between DTEs across a Frame Relay cloud.

2. Switched Virtual Circuits (SVCs) _ these are temporary connections used in situations requiring only occassional data transfers between DTEs across Frame Relay cloud. 
    The terms "Call Setup", "Data Transfer", "Idle", and "Call Termination" are associated with SVCs. Frame Relay SVCs are not widely supported by manufacturers.

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