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

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

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Computer Networking
Baseband is

a signal all of whose energy is contained within a finite frequency range
None of these
All of these
transmission of signals without modulation
the simultaneous transmission of data to a number of stations

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Computer Networking
What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

The administrator has the interface shut down.
The administrator is pinging from the interface.
No cable is attached.
The keepalives are different times.

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