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

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

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Computer Networking
Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology
Token-Ring, because it uses a MAU
Ethernet, because it can be set up with most topologies and can use multiple transfer speeds
Ethernet, because it is cabled using fiber-optic cable
Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies

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