You suspect that a gateway machine on your network has failed but you are unsure which machine. Which command will help locate the problem?

Question

Options

• Aps
• Bnetstat
• Cnslookup
• Difconfig
• Etraceroute

• A
  3% (1)
• B
  16% (6)
• C
  8% (3)
• D
  3% (1)
• E
  71% (27)

Explanation

traceroute reveals the exact hop-by-hop path packets take from your machine to a destination, so if a gateway has failed, the trace will stop or time out at that specific router - giving you the precise location of the failure. ps lists running processes and has nothing to do with network routing. netstat shows active connections and listening ports on your local machine, not the path through intermediate routers. nslookup queries DNS name resolution, which is unrelated to routing failures. ifconfig displays and configures your local network interfaces, so it can't see problems beyond your own machine.

Memory tip: Think "trace the route" - traceroute literally traces the route, making failed hops visible as timeouts (* * *). If you need to find where something broke on the path, you need a tool that walks the path.

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