Saturday, November 24, 2007

Networks: DNS info

You are trying to determine the name and IP address of the DNS server on a customer's network.
What command should you use?
1. nslookup
2. netstat
3. >>ipconfig
4. tracert

Explanation : You should run nslookup to determine the name and IP address of the Domain Name Service (DNS) server on the network. The nslookup command lets you view information as well as test and troubleshoot DNS services on the network.

You should not run netstat to determine the name and IP address of the DNS server on the network. The netstat command can be used to view network statistics, but it does not return information about the DNS server.

You should not run tracert to determine the name and IP address of the DNS server on the network. The tracert command is used to test and troubleshoot routing and routing problems. The tracert command returns information about each router and the round-trip time for each router between the source and destination.

You should not run ipconfig to determine the name and IP address of the DNS server on the network. The ipconfig command lets you view and manage IP configuration information. The ipconfig command lets you see the servers configured as DNS servers for a specific host, but it does not return DNS server information for the network.
Objective: Networks