Computer Networking
How should a router that is being used in a Frame Relay network be configured to keep split horizon issues from preventing routing updates?

Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.
Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.
Configure many subinterfaces in the same subnet.
Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.

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Computer Networking
If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

Flood the network with the frame
Add the source address and port to the MAC address table and forward the frame out the destination port
Discard it and send an error message back to the originating host
Add the destination to the MAC address table and then forward the frame

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