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

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

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Computer Networking
The physical layer, in reference to the OSI model, defines

data link procedures that provide for the exchange of data via frames that can be sent and received
All of these
the interface between the X.25 network and packet mode device
None of these
the virtual circuit interface to packet-switched service

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