Hi Nanda
I am afraid, we do not have a specific set of sample papers in case you looking for the same.
However, we do have a guide which includes all section that you would need to cover in order to clear the certification. This guide also includes self assessment worksheet.
You may want to download the same by going to link : https://training.adobe.com/content/microsites/ats/en/home/certification/exams/campaign_developer/_jc...
Regards
Anshul
