Computer Networking
In geosynchronous orbit, satellite

remains in a fixed position so that as earth rotates, it can fully cover the earth
moves simultaneously
None of these
moves faster than the earth's rotation so that it can cover larger portion of earth.
remains in a fixed position related to points on earth

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Computer Networking
A WATS arrangement

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

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