Computer Networking
Which of the following is required to communicate between two computers?

communications software
protocol
access to transmission medium
All of these
communications hardware

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Computer Networking
Contention is

a collection of interconnected functional units that provides a data communications service among stations attached to the network
One or more conductors that serve as a common connection for a related group of devices
a continuous frequency capable of being modulated or impressed with a second signal
None of these
the condition when two or more stations attempt to use the same channel at the same time

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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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