1. http://ranksheet.com , This site gives your free online tests and helps you build your resume. Tests are for older version, why bother when its free. 2. WIZIQ.COM Oracle Certified Associate -- http://www.wiziq.com/tests/oca , For DBA -- http://www.wiziq.com/tests/dba , SQL -- http://www.wiziq.com/tests/search.aspx?qry=sql This site gives you multiple tests which will help you prepare for OCA exams. 3. http://www.ncsacademy.com/freetest.cfm http://www.msexpert.com/exams/examlist.asp Not that great certifications but kind of ok to have certifications in different domains.