Discussion
Which three commands can be used to check LAN connectivity problems on a router?
1.show interfaces
2.show ip route
3.tracert
4.ping
5.dns lookups
Answer: A
Correct answer: 1 ,2 and 4
show interfaces reports the line and protocol status and the error counters, show ip route confirms the router knows a path to the destination, and ping tests reachability end to end. tracert is the Windows command - IOS uses traceroute - and DNS lookups test name resolution rather than connectivity.
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