yup, right now, lot of Goverment Corporation advertise that they need fresh employers, like Lowongan CPNS BPK 2009, CPNS Depag 2009, to face the Soal ujian CPNS, you need to prepare yourself.
Try to download some Soal ujian CPNS on the internet, you will find a lot of them, study all those things, learn about UUD, Amandemen UUD, learn about Tata Negara, Indonesia History, and English structure, that is basic knowledge that you should know.
Other knowledge is, try to review some mathematics function, such as how to count limas volume, kerucut volume and something like that.
The best tips is, practice a lot, read a lot, and kerja keras, why, because kerja keras adalah energi kita to give anything you need.