Computer Networking
When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?

An IP address on the physical interface
The Frame Relay encapsulation on the physical interface
PAP
The subinterface type as point-to-point
The local DLCI on each subinterface

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Computer Networking
What is split horizon?

It splits the traffic when you have a large bus (horizon) physical network.
It holds the regular updates from broadcasting to a downed link.
Information about a route should not be sent back in the direction from which the original update came.
It prevents regular update messages from reinstating a route that has gone down.

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