Though I have 10+ years of experience in SAP System Security and Authorizations it was very essential to prepare for the certification without which, you may have to risk the success.
Repeated practice through these questions will clearly make you confident about your knowledge in the product as well as the confidence in scoring very high. It would not be even necessary to get thorough through the SAP standard training offerings.
C_SECAUTH_20 Certification exam had many questions matching as in the SAP Exam. These practice questions covers all areas of SAP C_SECAUTH_20. Overall quite impressed on the service & quality of the questions.
The erpprep.com website was available 100% of the time and I have practiced the questions until a point I score consistency over 80% and my final score was just matching to the trial scores. I was able to complete the exam just in 36 minutes & was confident on most of my answers.