Computer Networking
Which of the following allows a router to respond to an ARP request that is intended for a remote host?

Gateway DP
Inverse ARP (IARP)
Reverse ARP (RARP)
Proxy ARP

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

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

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