Computer Networking
Interconnected networks need communication processors such as switches, routers, hubs, and gateways. Select the best fit for answer:

TCP/IP
Open Systems
Internetwork processor
Protocol

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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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Computer Networking
How should a router that is being used in a Frame Relay network be configured to keep split horizon issues from preventing routing updates?

Configure many subinterfaces in the same subnet.
Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.
Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.
Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.

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