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
A WATS arrangement

is never less expensive than flat-rate service
None of these
is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
is always less expensive than flat-rate service

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