Computer Networking
In geosynchronous orbit, satellite

moves simultaneously
None of these
remains in a fixed position so that as earth rotates, it can fully cover the earth
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
CSMA (Carrier Sense Multiple Access) is

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

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Computer Networking
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

All of these
a form of TDMA in which circuit switching is used to dynamically change the channel assignments
None of these
the method of determining which device has access to the transmission medium at any time.
a medium access control technique for multiple access transmission media

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Computer Networking
Which of the following refers to the terms "residual error rate"?

None of these
The probability that one or more errors will be undetected when an error detection scheme is used
the number of bit errors per twenty four hours of continuous operation on an asynchronous line
the probability that one or more errors will be detected when an error detection mechanism is used
signal to noise ratio divided by the ratio of energy per bit to noise per hertz

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