1) Life Cycle of a Thread? 2) What is transient variable? 3) Advantages of Packages? 4) What are Exceptions in Oracle? 5) What is Serialization? 6) Diff bet function & procedure? 7) What is index? 8) How to map java primitive data types to Oracle Data Types? 9) How did you do manual Testing? 10) Can interfaces have constructors? 11) What are the modifiers can have Interfaces? 12) What is Anonymous Class? Can we instantiate Anonymous Class? 13) In how many ways we can create Vector? 14) What is thin Driver? 15) Diff bet Type-IV & Type-I, Type-II? 16) What is rd.forward & rd.sendRedirect ()? 17) Diff bet Abstract Class & Interface? 18) Diff bet Statement & Prepared Statement? 19) In how many ways we can achieve Thread-safe? 20) When user given first request to Servlet, what will happen? 21) What is I18N? 22) Only one Servlet is there in application server, two requests are given for Servlet, so how many objects will be created? 23) Diff bet sleep () & wait ()?