I'm doing CISCO CCNA at the moment. But it is very easy (as in I walked into class had a little revision session and got 93% on the test with out any other work or even knowing the name of the module.)
(**** a crossover cable being required to connect a switch to a hub...)
It is a worthwhile course to be doing if you are interested in computers. Maybe one of those Microsoft courses but not too sure where you do them with no prior administrator experience.