Normal Ds, Algo questions ConcurrentHashMap, Multithreading, LinkedList, ArrayList, Object, Spring, Microservices. Design Principles, Some average difficulty level puzzles.
Member Technical Staff Interview Questions
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- give a mathematical formula for a 4 post tower of Hanoi puzzle - code a cache (I did LRU, and then different types of cache management) - data structure for a rabbits family tree and a function to see if two rabbits share a common ancestor - code a 2D (string) grid path thru #'s and .'s to code a "reach the end" method - discuss web services
Round 1: How would you implement white listing feature in DNS?
Round 2: Given two strings, A and B, determine the minimum number of cocatenations of subsequences of B to create A. Return -1 if not possible. Ex: A: allan B: lan Answer: 3 (lan + lan +lan)
General questions related to operating systems,programming,design etc. Face to face will be like picnic. People will come to take interview unprepared and throw abrupt questions. Questions will not be tough though but repeated questions and you will 'understand' that interviewer is not prepared for the interview
Technical details from resume A Scheduling problem using binary search Write code for First Fit and Best fit memory allocation algorithms Python equivalent for malloc and calloc Remove a node from linked list (given node itself) Difference between merge sort and quick sort Which sorting algorithm will you use if you have a definite space of memory which is less than twice the size of given array (quick sort as it's in place) Backend concepts Design principles Programming paradigms All answers required time and space complexity optimization
Threads and example of creating a semaphore / distributed semaphore.
Reverse a linked list.
Database design question regarding user-account management, authorization etc.
how many golf balls could you fit in a 747
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