Computer Networking
What does a VLAN do?

Provides multiple collision domains on one switch port.
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.

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Computer Networking
You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?

The host has an invalid MAC address.
The VTP configuration on the switch is not updated for the new host.
The router is not configured for the new host.
The switch port the host is connected to is not configured to the correct VLAN membership.

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