Computer Networking
Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?

Packet switch
Banyan switch
Crossbar switch
Multistage crossbar

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

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
Statistical multiplexers need buffers while multiplexers do not need buffers
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

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