Computer Networking
The Internet Control Message Protocol (ICMP)

allows gateways to send error a control messages to other gateways or hosts
None of these
All of these
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

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Computer Networking
You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router?

(config)# ip access-group 110 in
(config-if)# ip access-group Blocksales in
(config-if)# blocksales ip access-list in
(config-if)# ip access-group 110 in

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