Computer Networking
Which of the following allows a router to respond to an ARP request that is intended for a remote host?

Inverse ARP (IARP)
Proxy ARP
Gateway DP
Reverse ARP (RARP)

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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
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
allows gateways to send error a control messages to other gateways or hosts
All of these
None of these

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Computer Networking
Two connected routers are configured with RIP routing. What will be the result when a router receives a routing update that contains a higher-cost path to a network already in its routing table?

The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.
The updated information will replace the existing routing table entry.
The updated information will be added to the existing routing table.
The update will be ignored and no further action will occur.
They will all load-balance.

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