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What is a good troubleshooting practice for a VLAN interface on a Switch that is in "down/down" or "up/down" state? (Choose two)

Verify that the VLAN interface has an IP address configured.

Check that the encapsulation is not mismatched with the peer end.

Ensure that the VLAN exists and is active.

Make sure that the VLAN interface exists and is not administratively shut down.

Confirm that the interface is configured with auto-negotiation mode.

Explanation

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