Hello Shantharao,

I recommend not to go with any dumps if you have  upto 6 months hands on experience on servicenow.

1. Most Useful CONTENT: https://community.servicenow.com/community?id=community_article&sys_id=e59c2ee1dbd0dbc01dcaf3231f961...

2. ServiceNow Certified System Administrator Exam Specification (Blueprint) : 

https://www.servicenow.com/services/training-and-certification/certified-system.html

But Still if you want to go with the dumps then check out below links:

Practice Tests:

https://www.classmarker.com/online-test/start/?quiz=yb752a207d482ecf

servicenow admin Study Sets and Flashcards | Quizlet

http://www.cram.com/flashcards/test/servicenow-system-administration-certification-5002823

Please mark answer correct if you found it as helpful

Regards,

Abhishek