Nasdaq interview questions

Poor communication from HR organising it. Two technical interviews without notice. 9+ panelists of senior tech leads/ engineers over zoom. Not a good experience. Made it to final round and then flunked it.

It is likely to have 2 technical round and testing with the in-depth java knowledge and understanding the design principles and key concepts of OOPS, Multithreading and collections with its implementation and also the databases concepts