Round 1: (Online Exam)
- It was a coding exam held on Hacker rank. Three questions were given on the topics dynamic programming, Back tracking and Tree traversal.
- I was able to solve 2 problems completely with 3rd one being passed partially.
- Problems given are as follows:
https://www.geeksforgeeks.org/level-order-tree-traversal/amp/
https://www.geeksforgeeks.org/matrix-chain-multiplication-dp-8/amp/
https://www.geeksforgeeks.org/the-knights-tour-problem/amp/
Suggestion: Practice all standard problems on data structures, advanced data structures and algorithms.
Tips: Solve the questions with a calm mind. Try to figure out edge cases and negative scenarios before you submit your code.
Round 2: (Technical Interview)
Discussion on project in my previous organization.
- Initially Interviewer asked me to solve questions about detect cycle in linked list, N queens’ problem. I was able to solve both of them.
- Questions about Collections framework in java like how HashMap Works internally, Asynchronous vs Synchronous threads, how do you use two classes with same names in your service class,
- How indexing works in database?
- What is B+ tree?
- Questions regarding Mongo Database, Spring boot, Spring web Flux, Functional Programming in Java, and Java 8 features.
Suggestion: Be clear on the approach that you are using to solve the problem. Make Sure that your code itself is understandable to the interviewer. Answer all questions with clarity and elaborate with examples if possible.
Round 3: HR Interview
- Tell me about yourself.
- why do you want to switch?
- what is your goal?
- Do you have any Location constraints?