Computer Networking
When a new trunk link is configured on an IOS-based switch, which VLANs are allowed over the link?

No VLAN's are allowed, you must configure each VLAN by hand.
Only extended VLAN's are allowed by default.
By default, all VLANs are allowed on the trunk.
Only configured VLAN's are allowed on the link.

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Computer Networking
A T-switch is used to

control how messages are passed between computers
None of these
echo every character that is received
rearrange the connections between computing equipment
transmit characters one at a time

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