Computer Networking
Demodulation is the process of

combining many low speed channels into one high speed channel
converting analog signals to digital signals
converting digital signals to analog signals
dividing the high-speed signals into frequency bands
None of these

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Computer Networking
Which of the following is true regarding VLANs?

You must have at least two VLANs defined in every Cisco switched network.
All VLANs are configured at the fastest switch and, by default, propagate this information to all other switches.
You should not have more than 10 switches in the same VTP domain.
VTP is used to send VLAN information to switches in a configured VTP domain.

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Computer Networking
HDLC (High-level Data Link Control) is

None of these
network access standard for connecting stations to a circuit-switched network
a very common bit-oriented data link protocol issued by ISO.
a method of determining which device has access to the transmission medium at any time
a method access control technique for multiple-access transmission media

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