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Q. 20
Which commands could be used at the command line interface to troubleshoot LAN connectivity problems on a router? (Choose three.)
A.ping
B.tracert
C.ipconfig
D.show ip route
E.winipcfg
F.show interfaces
Answer: A, D, F
Explanation: There are a number of commands that can be used to troubleshoot connectivity problems on a router. The ping command verifies connectivity, the show ip route command shows a great deal of information that is useful for troubleshooting connectivity, and the show interfaces command displays statistics for the network interfaces on the router.
Incorrect Answers:
B is incorrect; tracert is not a valid command. The Cisco command is trace.
C and E are incorrect; these are great Microsoft troubleshooting commands but they are not valid Cisco commands.
Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 124,
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