Computer Networking
In geosynchronous orbit, satellite

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

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Computer Networking
MAC is

None of these
network access standard for connecting stations to a circuit-switched network
a very common bit-oriented data link protocol issued to ISO.
a method of determining which device has access to the transmission medium at any time
a method access control technique or multiple-access transmission media

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