Computer Networking
Carrier is

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

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Computer Networking
Which of the following is true when describing a link-local address?

These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
Packets addressed to a unicast address are delivered to a single interface.
These are like private addresses in IPv4 in that they are not meant to be routed.

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Computer Networking
The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

The new configuration should be entered and saved.
Flash should be erased and the router restarted.
RAM should be erased and the router restarted.
NVRAM should be erased and the router restarted.

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Computer Networking
Modulation is the process of

Multiplexing various signals into high speed line signals
performing data encryption.
converting analog signals to digital signals
converting digital signals to analog signals

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Computer Networking
The application layer of a network

All of these
None of these
defines the user's port into the network
consists of software being run on the computer connected to the network
establishes, maintains, and terminates virtual circuits

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