Lenovo Data Engineer Interview Questions and Answers

Round: Test
Experience: The first consisted of an online test which had an aptitude section which was pretty simply and then a programming section consisting of three different programs. The programs were logical required basic knowledge of array, sorting and a little bit of data structures.

Round: Technical Interview
Experience: Around 13 of us were shortlisted for the interview round, B.Tech and M.Tech included. The interview round was mostly interactive, where we had to mention about the various interns that we went through. A few programming questions were asked based on topics which we were comfortable with.
Tips: Just get used to coding, data structures and basic aptitude. GRE preparation as such helped me.

Round: HR Interview
Experience: Finally there was a HR round in which I was asked as to why I would like to work in Samsung R&D and general things about interests and future plans. On the whole Samsung took 3 B.Tech students and 2 M.Tech students when they came for placements apart from PPOs.

General Tips: Personally I feel that one should apply in only those companies in which they are sure of having job satisfaction. So don't apply to companies which you are not interested in just for the sake of having a backup because once you are placed you do not have a second chance.
Do not get dejected if you do not get through in the first few tries. Keep your hopes up and be confident when ever you get to interview rounds. Try to be assertive when giving answers. It is some times exhausting to go through placements but the moment you get placed you will have the best feeling ever.
Skill Tips: Just chill and take the test. Once you clear the online test, irrespective of your pointer if you have a good profile you can convince the interviewers.
Skills:
College Name: NIT Surathkal

Round: Test
Experience: Written round: One programming question of 3 hours duration.All test cases were to passed.
Duration: 3 hours minutes
Total Questions: 1

Round: Technical Interview
Experience:
There were two rounds : tech PI and HR round.
A.Tech. PI: Firstly,interviewer went through my whole resume.He started asking questions from project done during summer internship.Questions were:
1.What is he project about?
2.Difference between 3G and 4G.
3.What is the aim of this research internship?
4.How much was i able to complete in two months?(I told that i am continuing as major project,since in two months time i could not get desired result).

Then, he went onto programming language i was comfortable. I answered C.
1.sizeof("shubham")
strlen("shubham")
I was asked to write output.Output would be 8 and 7. He asked why. Basic concepts should be clear.
2.Storage Classes in C-asked me concept and gave some questions to write output.
3.Constant pointers and pointers to constant. Asked to write output of snippets he gave.
4.malloc,caloc,realloc,free-syntax
5.Questions on pointers.

Basic concepts of let us C were asked mostly,that book is enough . Also see, GEEKSFORGEEKS, C section.

Operating System: Mutex and Semaphore,critical Section, Scheduling algorithms, Producer-Consumer Problem.
(Data Structures was not asked to me but others.)

Puzzles:
1. Maximum run a batsman can make in 50 overs.
2.There are 10 coins. 5 face head side and 5 as tail. You are blind folded.Make two piles of equal number of coins such that number of head in equal in both the piles.
Assumption:You can flip coin any number of times.

Question: Why do you want to join Samsung ,though placed in other company?

Questions: Any plans of future studies. I answered 'NO' only job.

Last question: Any question I would like to ask them. I asked what work would be doing in R&D. He explained me a lot of things.
Tips: 1.Be thorough with your project(done during internship or training) . You should be able to answer almost all the questions.
2.Study operating system very well if you plan to sit in samsung R&D.
3.Data structures and any one programming language.
4.Prepare puzzles as it can be asked by anyone. See programmerinterview.com etc.
5.Refer samsung archives of GEEKSFORGEEKS . Interview questions were mostly covering those.

Round: HR Interview
Experience: 1.Introduce yourself.
2.How would your friends describe you?
3.Tell the recent experiences of which makes you initiative.(i told that i am initiative,then he asked that question. So be ready with the examples,when u say any of your qualities.)
4.What is your weakness?
5.Puzzles.He asked me to fill the numbers from 1 to 8 in these 8 boxes, one number exactly once, such that no two consecutive elements are
adjacent(diagonally, horizontally or vertically) to each other.

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6.Which places in India have you been?


Skills: Solving Logic Puzzles, Basic C/C++, Data Structures, Operating Systems
College Name: NIT Raipur

Round: Test
Experience: Test for internship:1 aptitude test on quant and C. Around 50 were selected for internship. Next was PPO after the internship. Around 15 were selected.

General Tips: Work very hard during internship. Don't worry whether they will take you in or not.
Amazing experience it was be strong with aptitude, coding.
Skill Tips: Prepare quantitative Aptitude by R.S. Aggarwal.
Prefer Indiabix for C aptitude.
Skills:
College Name: NIT Surathkal

Interview preparation tips for other job seekers - Overall good

Round: Test
Experience: There was an online test having 3 section, one for aptitude testing, one for logical testing and the last one for technical testing.
Aptitude and logical questions were very basic.
Technical questions included : C C++ Java DS DBMS DAA
Tips: For aptitude and logical part, you need to prepare regularly. Nothing comes out of the box, but you just have to be quick in solving the questions.
For the technical part, prepare well by revising your course materials. Basic one word questions are asked.
Duration: 1 hour
Total Questions: 60

Round: Coding
Experience: This round consists of multiple sets of coding. One question per paper. It's on your luck, which question you'll get. Also,net is allowed. You have to complete the code and show it to the invigilator.
Tips: This round is generally not there in placement drives of DELL. It is on your luck.

Skills: Communication, Data Structures, Basic Knowledge Of DBMS
College Name: Manipal University Jaipur

Round: Test
Experience: Given a marathon racer and an array of 5 elements having the time taken (t_i) and energy spent(e_i) for running 1 Km. He has to run a marathon of D Km and expending atmost E energy. Find the minimum time required to run the marathon. Once he starts a 1 Km sprint, he has to continue at the same speed till the 1 Km is complete.
Tips: Try Brute force, if nothing works.

I used a*e_1+b*e_2+c*e_3+d*e_4+e * e_5 <= E
and a+b+c+d+e = D

Solve these two equation and minimize a*t_1+b*t_2+c*t_3+d*t_4+e * t_5
Duration: 3 hours
Total Questions: 1

Round: HR Interview
Experience: Family background, About the HIPC coding competition that we won. Publication, etc

Round: Technical Interview
Experience: This round was to test my knowledge on distributed systems and problem thinking skills.
Coding question
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Q)What new feature will you add in Television?
I initially said, recommendation. But he said what more. Then I said gesture control.

Round: Technical Interview
Experience: All the currency notes are demonetized, You as RBI cheif have to distribute the 500 cr given by center for chennai have to distribute to various, public sector, private sector, and cooperative banks in the city. You have all the transactions data available with you. Solve this problem with your knowledge of distributed systems.

Skills: General Coding And Problem Solving
College Name: IIT Madras

Round: Test
Total Questions: 1

College Name: NIT Durgapur

Round: Test
Experience: It was an online coding test on the platform provided by Samsung only. The difficulty level was advance.
Duration: 3 hours
Total Questions: 1

Round: Technical Interview
Experience: It was a technical interview which covered all the topics related to data structure and algorithms.

Round: Technical Interview
Experience: It was a technical interview which covered all topics related to subjects like is, DBMS, c++,etc

Round: Technical Interview
Experience: It was a technical interview in which interviewer asked about the projects done.

Round: HR Interview
Experience: The basic intro,questions related to Samsung and why do u want to join Samsung.

College Name: NIT Kurukshetra