TIAA
1.how NLP Implemented in your company
2.NLP algorithm ?
3.NLP working in KB? How AI is implemented

Synechron for UBS
1. What is OOPS principles ? What's is abstractions ? If interfaces in java 8 is similar to abstract class then why it is required ?
2. Composition and Aggregation
3.what is indexing in SQL ? types of index ?
4.what is difference between concurrentHashMap and hashMap ? What is LINKEDHASHMAP ?
4. Return in try and return in finally what value shoud return
? What happened if exception in finally ?
5. Design patterns in java ? What is singleton design pattern ? Where singleton pattern used ?
6. How to create custom exception ?
7.What is the difference between ClassNotFoundException and NoClassDefFoundError?
8. Difference between synchronised and lock
9. What is difference between notify ()and notifyall() ? If notifyall() then why required notify() ?
10. What is read write lock in java ?.
11. What is Retrancelock() ?
12 what I producer and consumer model ? What is blocking queue
13. What is countdownlatch ? What is cycallibarrier ?
14. What is java 7 features ?
15. What is SOLID principles

What is Invasive & Non Invasive ?
what is POJO ?
what is POJI ?
what is Java Bean Class ?
What is Bean class/Component class ?
what is Spring Bean class ?