Computer Networking
Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

None of these
physical layer
data link layer
network layer
transport layer

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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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