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Interra Systems Interview Experience | On-Campus 2021

  • Difficulty Level : Hard
  • Last Updated : 06 Aug, 2021

Round 1(Online Test): It was a Coding + Aptitude test on Naukri.com Platform

The breakdown was like this:

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  • Quantitative:- 10 questions
  • Logical Reasoning:- 15 questions
  • Verbal English:- 10 questions
  • Data Structures and Algorithms:- 15 questions
  • Coding Questions:- 5 ( easy level)

I Solved 4 Coding Questions and Got Selected for the next round



PS: My Coding is not very good so if you know basic coding and your problem-solving skills are good you can easily crack this round

Round 2(Technical Interview 1): Some Basic Questions were asked from:

  • Data Structures and Algorithms
  • OOPs Concepts (Very Important)
  • DBMS (Very Few Questions)

I don’t remember all the questions but I’ll share a few:

  1. What is Polymorphism? Write a code to show it
  2. Explain Features of OOPS
  3. Abstract class ( don’t just read definition you need to know in detail)
  4. Virtual Keyword
  5. Why do we need an abstract class? Explain with some real-life application
  6. How can we achieve Abstraction
  7. How memory is allocated in C++
  8. Dynamically Create an array
  9. Dynamically Create a 2D array
  10. delete keyword and new keyword
  11. Now Delete this 2D array using the delete keyword

Coding Questions:-

  1. Maximum Sum Subarray
  2. Given a Linked List in which one element is repeating many times you have to modify the list such that it contains only the repeating element

    Ex:-  

    head - 6-5-3-4-3-2-1-3-8-3-3
    Your List Should be:- 
    head - 3-3-3-3-3

Round 3(Technical Interview 2): Again some basic questions on c++ and oops and data structures and algorithms.

  1. Which data structure will you use to store a paragraph?

Coding Questions:-

  1. Y Shaped Linked List. Find the intersection Point
  2. Given Two Sorted Arrays you have to merge them in one single array in the minimum time complexity
  3. Sort array of 0’s 1’s and 2’s

Tip: 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 Puzzles

  • You can find most of them in GeekforGeeks
  • Practice Puzzles from GfG are a must.

Round 5(HR Discussion): This was just a discussion and basic questions like

  1. Why interra Systems?
  2. What other offers do you have?
  3. Some Questions Regarding Family background

Note:

  1. Revision of OOPS AND DS ALGO IS MUST
  2. Don’t forget to read puzzles from GfG.
  3. Practice the top 50 questions of Arrays, Strings, and Linked List.  
  4. For any queries feel free to contact me

Can’t Wait To see you at Interra!

All the best!

My Personal Notes arrow_drop_up
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