Computer Networking
Carrier is

None of these
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
the condition when two or more sections attempt to use the same channel at the same time
a continuous frequency capable of being modulated or impressed with a second signal

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

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Computer Networking
Which of the following is true regarding access lists applied to an interface?

One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
You can place as many access lists as you want on any interface until you run out of memory.
You can apply only one access list on any interface.
You can apply two access lists to any interface.

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