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Interra Systems Interview Experience | On-Campus 2021

Round 1(Online Test): It was a Coding + Aptitude test on Naukri.com PlatformThe breakdown was like this:Quantitative:- 10 questionsLogical Reasoning:- 15 questionsVerbal English:- 10 questionsData Structures and Algorithms:- 15 questionsCoding Questions:- 5 ( easy level)I Solved 4 Coding Questions and Got Selected for the next roundPS: My Coding is not very good so if you know basic coding and your problem-solving skills are good you can easily crack this roundRound 2(Technical Interview 1): Some Basic Questions were asked from:Data Structures and AlgorithmsOOPs Concepts (Very Important)DBMS (Very Few Questions)I don’t remember all the questions but I’ll share a few:What is Polymorphism? Write a code to show itExplain Features of OOPSAbstract class ( don’t just read definition you need to know in detail)Virtual KeywordWhy do we need an abstract class? Explain with some real-life applicationHow can we achieve AbstractionHow memory is allocated in C++Dynamically Create an arrayDynamically Create a 2D arraydelete keyword and new keywordNow Delete this 2D array using the delete keywordCoding Questions:-Maximum Sum SubarrayGiven a Linked List in which one element is repeating many times you have to modify the list such that it contains only the repeating elementEx:-  head – 6-5-3-4-3-2-1-3-8-3-3
Your List Should be:-
head – 3-3-3-3-3Round 3(Technical Interview 2): Again some basic questions on c++ and oops and data structures and algorithms.Which data structure will you use to store a paragraph?Coding Questions:-Y Shaped Linked List. Find the intersection PointGiven Two Sorted Arrays you have to merge them in one single array in the minimum time complexitySort array of 0’s 1’s and 2’sTip: Time Complexity is very Important if you Give the Brute Force Solution. They will ask you to write efficient Code.Round 4(Puzzles Round): In this round, they asked me 6-7 PuzzlesYou can find most of them in GeekforGeeksPractice Puzzles from GfG are a must.Round 5(HR Discussion): This was just a discussion and basic questions likeWhy interra Systems?What other offers do you have?Some Questions Regarding Family backgroundNote:Revision of OOPS AND DS ALGO IS MUSTDon’t forget to read puzzles from GfG.Practice the top 50 questions of Arrays, Strings, and Linked List.  For any queries feel free to contact meCan’t Wait To see you at Interra!All the best!Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course. In case you are prepared, test your skills using TCS, Wipro, Amazon. Google and Microsoft Test Serieses.