Computer Networking
What is route poisoning?

It describes when a router sets the metric for a downed link to infinity.
It prevents regular update messages from reinstating a route that has just come up.
It is information received from a router that can't be sent back to the originating router.
It sends back the protocol received from a router as a poison pill, which stops the regular updates.

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Computer Networking
Which one of the following is true regarding VLANs?

VTP is used to send VLAN information to switches in a configured VTP domain.
Two VLANs are configured by default on all Cisco switches.
VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
You should not have more than 10 switches in the same VTP domain.

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