Phone Interview : 1. Shallow copy deep copy 2. Serialization 3. Types of Thread synchronization 4. Hash Table n hash colision resolution techniques 5. Puzzle-join 4 dots using three lines 1:1 interview 1. Puzzle- Find minimum floor from which a tt ball will break, if there are 100 floor and 2 tt balls 2. In memory cache -design, problem an solutions 3. Find one/twomissing number in 1-n numbers Online coding test -2 hours 1. Can browse net 2. Was given airlines portal sstem with api, write client code that uses api and write some code to add more exception scenarios, errors, scalable situations and race conditions