Computer Networking
Which of the following frequency ranges is used for AM radio transmission?

Very High Frequency : 30 MHz to 300 MHz
None of these
High Frequency : 3 MHz to 30 MHz
Very Low Frequency : 3 kHz to 30 kHz
Medium Frequency : 300 kHz to 3 MHz

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Computer Networking
A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:

Information super highway
Internetworked enterprise
Client/Server networks
None of these
Business applications of telecommunications

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Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Statistical multiplexers need buffers while multiplexers do not need buffers
None of these
Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

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