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

Contention
Collision
Synchronous
None of these
Asynchronous

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Computer Networking
What does a VLAN do?

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

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