EPAM Systems Automation Test Engineer interview questions

1. why cant create object of abstract class? 2. Add elements in list and search one of them 3. Difference between get() and navigate() in selenium 4. SQL Update query 5. Path and query parameters in API 6. Jenkins job related question, I forgot. 7. Critical Integration Scenarios in amazon.com application 8. Find xpath of 2nd element in search box of MMT.com

Do you know what is CI/CD? What type of tools did you use during your carrier?