Computer Networking
What command is used to create a backup configuration?

copy running-config startup-config
wr mem
copy running backup
config mem

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Computer Networking
The Internet Control Message Protocol (ICMP)

All 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
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
None of these

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Computer Networking
The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are

adequate cost control mechanisms for administration of the private networks
to assign address to private network DTEs
universal accessibility for private network Data Terminal Equipment (DTE)
A and B both
None of these

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