Interra Systems Interview Experience | On-Campus 2021

06 Aug, 2021
Round 1(Online Test): It was a Coding + Aptitude test on Naukri.com Platform
The breakdown was like this:
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:
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 keyword
What is Polymorphism? Write a code to show it
Explain Features of OOPS
Abstract class ( don’t just read definition you need to know in detail)
Virtual Keyword
Why do we need an abstract class? Explain with some real-life application
How can we achieve Abstraction
How memory is allocated in C++
Dynamically Create an array
Dynamically Create a 2D array
delete keyword and new keyword
Now Delete this 2D array using the delete keyword
Coding 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 - 3-3-3-3-3
Maximum Sum Subarray
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 elementEx:-  head - 6-5-3-4-3-2-1-3-8-3-3
Your List Should be:- 
head - 3-3-3-3-3
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.
Which data structure will you use to store a paragraph?
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’s
Y Shaped Linked List. Find the intersection Point
Given Two Sorted Arrays you have to merge them in one single array in the minimum time complexity
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
Why interra Systems?What other offers do you have?Some Questions Regarding Family background
Why interra Systems?
What other offers do you have?
Some Questions Regarding Family background
Note:
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 me
Revision of OOPS AND DS ALGO IS MUST
Don’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 me
Can’t Wait To see you at Interra!
All the best!
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