Informatica UI Designer interview questions

Applied online on their careers site.3 rounds of telephonic interviews followed by 3 rounds of 1:1 interviews at their bangalore office. 1)Implement autocomplete - write javascript code and read it. 2) Inheritance in javascript - constructor inheritance and calling 3)Is javascript mult-threaded ,how to make it , asked about set-timeout 4)asked about webservice polling,HTML5 websockets6 5)unit testing in javascript (jUnit test case for login) 6) web security ( session hijacking , some internals of how https works)