Hi Raju,
Congrats on taking this step in your certification journey. Just to clarify, there are no prerequisites to sitting for our core exams and you can take any exam that you feel matches your skills and experience level.
I always recommend candidates carefully review the Qualifications and Skills Measured information on the exam’s catalog page by scrolling down to the bottom of the page. If you identify a gap between their knowledge and skills and those measured by the exam, the exam information guide PDF document associated with each exam provides a useful list of learning options and online resources, organized by topic.
Currently, we do not have any additional web courses or practice exams to help you prepare, but you might consider starting a discussion here in Geonet or on our LinkedIn page to get some feedback from other Esri certification candidates.
Thanks for your questions and good luck on your exam!
-Jeren Portillo
