Computer Networking
ICMP (Internet Control Message Protocol) is

None of these
a protocol used to monitor computers
a TCP/IP high level protocol for transferring files from one machine to another
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
a protocol that handles error and control messages

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Computer Networking
What is a stub network?

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

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