I am a Salesforce Consultant working on small to large scaled Salesforce implementation projects with my team. My team and I cleared over 20 Saleforce certifications, varying from admin, sales, service, email, marketing cloud, community, lignhting, paltform developer, data architecture and management designer, just to name some.
As an experienced salesforce exam taker, I can say some exams, like admin, are easier; while some are more difficult and tricky to crack. You definitely require clear concept and real practice to get through them, unless you have a good (updated and verified) dumps on them.
While my team keeps taking and maintaining certifications, we ourselves become sort of experimenters to tell which dumps are good and have collected a pool of them.
For anyone who is interested, please email sfdc.certificates@gmail.com for dumps. I wish you all the very best of luck in passing your certification exam!