Computer Networking
In geosynchronous orbit, satellite

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

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Computer Networking
Bandlimited signal is

All of these
simultaneous transmission of data to a number of stations
transmission of signals without modulation
a signal all of whose energy is contained within a finite frequency range
None of these

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Computer Networking
Demodulation is a process of

converting analog to digital signals
performing data description.
converting digital to analog signals
multiplexing various signals into one high speed line signals

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