Computer Networking
What does the acronym ISDN stand for?

None of these
Integrated Services Data Network
Indian Standard Digital Network
Integrated Services Digital Network
Intelligent Services Digital Network

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

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

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