1) Can you explain how you would handle dynamic elements or synchronization issues when automating login for sites like Yahoo using Selenium WebDriver? 2)abstract class and interface define 3) sql query two table join and found total years of amount.? Which one is highest seller.. 4) RemoteWebdDriver how it's working? 5) SDLC PROCESS? 6 ) What is RTM? How it's working? 7) STLC process?