This test is rather expensive, unless a computer company can sponsor you. What I mean is, if you work for a computer place and have not gotten certified yet, the company may pay for your test so you don't have to. Another thing to beware of, only take this test when you know you are ready, because pass or fail you spent the money and don't get it back. A wise thing to do is to take notes on anything you read in a book or read off of the Internet while you study. Taking notes during class should go without saying since you should know that by now.
Computer companies like to hire on people who are certified in anything.
It saves them time and money having to train you. Once you get better and learn more, and refine what it is you want to work on you may go for more certifications. A good choice for certifications is the MCSE, which is one of the Microsoft certifications. This test comes in a series of tests, so you don't take all of them at one time. There are many certifications to choose from, so once you choose what you do with computers chances are you can get certified in it.