It is a certification from comptia (makers of the A+ cert) it mostly covers tcp/ip from what I can tell.
I work for Ricoh and they want to pay us to take computer certification tests. The first one was the A+. I got 500.00 for taking that one. Now Network+ is the next one.
Basically if anyone knows of any good online or cd based computer training courses that would be good it seems like the ones I have found offer a course for just about every certification there is.