CCNA 4 Module 5 V3.1 Answers
1. How does Frame Relay technology process frames that contain errors? (Choose two.)
Frame Relay services depend on the upper layer protocols to handle error recovery.
It requires the receiving device to request that the sender retransmit erroneous frames.
FECN, BECN, and DE bits are set in the frames to minimize errors.
The receiving device drops any frames that contain errors without notifying the sender.
The frame relay switch notifies the sender that errors were detected.
2. Which statement identifies a reason for using point-to-point subinterfaces in Frame
Subinterfaces overcome routing update and split-horizon issues that occur with
multipoint logical interfaces on a single physical interface.
A point-to-point subinterface does not require an IP address and therefore saves address
Point-to-point subinterfaces provide greater reliability and reachability in Frame Relay
networks by requiring a mesh topology for network configurations.
Point-to-point subinterfaces increase the number of DLCIs that can be configured in a
Frame Relay network.