Practice SAP HCM Configuration

Hello everyone

I am new to SAP HCM and planning to write the SAP HCM exam soon, The online sample questions for SAP HCM are mostly based on the practical knowledge of configuration, is there a book available through which I can practice real case scenarios so that I can have better understanding of SAP HCM to give the exam. Any suggestions and exam related info is appreciated.

Thanks

Ruchi