Computer Networking
What does a VLAN do?

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

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Computer Networking
The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

RAM should be erased and the router restarted.
Flash should be erased and the router restarted.
The new configuration should be entered and saved.
NVRAM should be erased and the router restarted.

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