Computer Networking
To connect a computer with a device in the same room, you might be likely to use

a ground station
a coaxial cable
All of these
a dedicated line
None of these

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Computer Networking
The Internet Control Message Protocol (ICMP)

None of these
allows gateways to send error a control messages to other gateways or hosts
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
All of these
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem

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