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Which statement is true regarding the use of frame-relay point-to-point subinterface in hub-and-spoke topologies?
It is the default behavior of all serial interfaces on a cisco router
They do not violate the split horizon rule
Multiple DLCIs can be assigned
Multiple addresses can be applied on a subinterface on a single subnet, thus saving IP address space
A point-to-point frame-relay subinterface acts like a serial interface (leased line). They require only one subnet (routing update traffic will not violate the split horizon rule) for each subinterface. Only one DLCI can be assigned on each subinterface. (Cisco Frame Relay Solutions Guide by Jonathan Chin)
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