Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Statistical multiplexers need buffers while multiplexers do not need buffers
None of these
Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

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

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

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