Computer Networking
What does the passive command provide to dynamic routing protocols?

Stops an interface from sending periodic dynamic updates but not from receiving updates.
Stops the router from receiving any dynamic updates.
Stops the router from sending any dynamic updates.
Stops an interface from sending or receiving periodic dynamic updates.

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Computer Networking
The Internet Control Message Protocol (ICMP)

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

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