Server, username and password: How do I get these to sign into a server for my training on Microsoft SQL Server Management Studio

Hi,

I am a newbie. I am looking at training video from 2012 and they were using a server called CONTOSO01 which does not work when I try to log in. How do I find and use a Server name with automatic Windows Authentication or how do I get a Server name for login with a SQL Server authentication username and password?

I just want to log into a Server so I can practice using Microsoft SQL Server Management Studio so I can get certified for creating and managing databases. My MTA certification.

Thanks in advance for help!