During a network troubleshooting session, you want to check the routes that a packet is taking to a remote device. What’s the best command to use?
A) IPCONFIG
B) NSLOOKUP
C) PING
D) TRACERT
The answer: D) TRACERT
The traceroute command uses management protocols to document each route through a network to an end device. Using traceroute, a route can be confirmed or an incomplete connection can be traced to determine how far it can get through the network before failing.
The incorrect answers:
A) IPCONFIG
The IPCONFIG command is used to check the IP configuration on the local workstation. IPCONFIG won’t provide you with detailed routing information about the network path.
B) NSLOOKUP
To convert from a fully qualified domain name to an IP address, the local system must perform a DNS lookup. The NSLOOKUP command can be used to manually test the DNS configuration and perform lookups on any domain name. This command is very useful for troubleshooting DNS or name server problems.
C) PING
The PING command performs a very basic (but very useful) function. Using PING, you can verify that a device across the network is accessible. If you’re trying to test connectivity to a remote device, the PING command is often the first troubleshooting test to use.
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Want to know more? Watch “Troubleshooting Network Connections.”When the network isn’t working, the organization isn’t working. In this video, we’ll show you some command line utilities that can help you find any problems that might be lurking in your network. We’ll demonstrate IPCONFIG, NSLOOKUP, PING, TRACERT, PATHPING, NBTSTAT, and NETSTAT. We’ll also give you some best practices for troubleshooting network interfaces, protocols, and firewalls. |