Computer Networking
Which of the following condition is used to transmit two packets over a medium at the same time?

None of these
Asynchronous
Synchronous
Contention
Collision

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Computer Networking
You type debug ip rip on your router console and see that 172.16.10.0 is being advertised to you with a metric of 16. What does this mean?

The route is queued at 16 messages a second.
The route has a delay of 16 microseconds.
They will all load-balance.
The route is 16 hops away.
The route is inaccessible.

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

Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
None of these
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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