Hi yenz101~ welcome to this site.
1. Place your application for job at govt website:
http://www.spa.gov.my 2. Click (SPM left side of page)to fill out Application Form. You select 5 posts, etc... and submit. You can choose any job without experience bcos training provided.
3. When there is any post vacancy, govt will call you for interview.
4. Must re-apply again after 1 year posting if you dont get any call for interview.
About questions asked in interview, please browse page 2 in thisf lylah site which someone had kindly copy and paste the interview questions to share with others. I guess questions should be similar to atco or aatco. Other info can browse this site.
Goodluck to you.