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
Multistage crossbar
Banyan switch
Crossbar switch

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

Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol
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)
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

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Computer Networking
What does a VLAN do?

Breaks up broadcast domains in a layer 2 switch internetwork.
Provides multiple collision domains on one switch port.
Acts as the fastest port to all servers.
Provides multiple broadcast domains within a single collision domain.

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