Computer Networking
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?

Modem
Attenuation
Teleprocessor
Interface
None of these

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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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