Azuga Software Developer interview questions

It is a walk-in-interview : 1st round: Whiteboard test -> mostly concentrated on Data Structures, 5 problems given. 2nd round: Face to Face interview mostly Core Java topics and asks to solve medium problems. I have completed both rounds and they said me that "we will call you for the further rounds", I think they didn't recharged their mobile after that.

I applied as 1 year experience java developer. 1st round was in their office on hackerrank. Two coding questions 1)To find holes in entered number like 4,6,9,0 has one hole and 8 has two holes. 2)Find the factors of number and print the i th factor according to the position entered. Coding round had two java basic mcqs also. Second round was technical interview. They mainly focus on basic core java. How all collection work internally. Hashmap, hashset with their internal data structure implementation. They asked about deadlock and program on it. How collision occurs in hashing and techniques to avoid it. To crack this comapny u need to be really strong with internal working of java.