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
TCP is:

Connection orientated and reliable
Connectionless and unreliable
Connection orientated and unreliable
Operates at the Data Link layer
None of these

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