3 technical rounds were all about problem solving, getting deep into some Data Structures concepts, at last round there were some questions about CS fundamentals too, including system design concepts questions, round focusing entirely on system design was not there. P.S: Very hard, difficult to come up with sol. questions were not asked. Meanwhile interviewers in technical rounds are quite supportive too, trying to guide to optimised solution.
Tell me about your self. We have some coins 1,2,3 Rs. And given a sum so need to find out the ways we get this sum. E.g sum is 4 (1+1+1+1, 2+2,2+1+1,3+1) total 4. What is LRU and create a LRU.
Tell me about a situation when you had to optimize something on your front end to improve performance.
Questions were regular Data Structure and Algorithms from Geeks for Geeks and other known interview preparation sites
Longest substring in a string, both brute force and optimized approach. Binary tree - nodes visible from right side. Given 2 numbers, find the AND of binary representation of all numbers in between those 2 numbers (inclusive).
What is the difference between checked and unchecked exceptions in Java? Is NullPointerException a checked or unchecked exception?
What is a static class in Java?
Write code to traverse a tree
Threading and locking issues
If you were in a situation where you were in the middle of working on a client issue, and during this an exec calls asking you to take on a priority task right away, what would you say to the exec?
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