Computer Networking
Now-a-days computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose?

Modem
Scanner
None of these
Fax
Keyboard

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Computer Networking
What does a VLAN do?

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

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