Answer:
nslookup
Step-by-step explanation:
Step 1: Open a DOS command window. To do this click Start, click Run, type cmd and press enter.
Step 2: in command prompt type "nslookup mycompany.com 8.8.8.8".
Step 3: Interpret output from nslookup. Output will be something like:
Server: XYZ
Address: 8.8.8.8
Name: mycompany.com
Address: 8.8.8.8