Computer Networking
What is a stub network?

A network with more than one exit and entry point.
A network that has only one entry and exit point.
A network with only one entry and no exit point.
A network with more than one exit point.

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Computer Networking
The Internet Control Message Protocol (ICMP)

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

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