Interviewee — Purushottam Dubey
AthenaSquare Profile — https://athenasquare.org/dflag44
Website — https://www.sigmoid.com/
Profile — SDE [ 6 months + FTE ]
Salary — Rs. 15.63 Lacs (Basic Pay)
Location — Bangalore
Round 1: Online Assessment
It was the first round. There were 30 Multiple choice questions which include questions related to debugging, DBMS, and OS. There were some questions where I was asked to write SQL queries for some use cases. This was followed by 3 coding questions i.e 1 hard and 2 medium difficulty questions.
Prepare the core concepts of CSE like OS, DBMS, and SQL well to ace the first round. You need to clear this round to get an interview call.
Round 2 — Tech Interview 1
This was the second round. This round started with my brief introduction. Make sure you give a short and sweet introduction of yourself. The introduction should not be for more than a minute.
I was asked to code 2 coding questions on my preferred IDE.
The first coding question was finding the longest common substring. This question was easy and standard. The second question was comparatively hard. It involved finding the maximum number in the k-sized window in an array of integers.
At last, one SQL query was asked in which I was asked to find the second largest number in a column from a table and return that number.
Round 3 — Tech Interview 2
This was the third round. This round also started with a brief intro of both the interviewee and the interviewer following which a coding question was asked to code.
The question was to create a tree from the given level order traversal of the tree. This is a standard question and you can find it easily on the internet.
The other questions which were asked in this round were related to time and space complexities. Like what is the time complexity of a queue, priority queue, and some techniques of tree transversals. The questions asked in this round were mostly of medium difficulty.
Round 4 — HR Interview
This was the third and last round. Some standard HR round questions were asked. The subsequent question that was asked was what are your interests and hobbies.
Then there was a discussion on designing a better traffic system in India for managing the increasing traffic in an efficient way.
Make sure you are confident and clear while answering the question. Prepare yourself for the standard HR question before the interview itself.
Result — Selected.
Topics to prepare well to ace interview-
— Data structures and algorithms [Trees, arrays, strings]
— Project
— Computer Networks
— Operating System
— DBMS
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