Pillar Audio Visual Services Interview Questions and Answers

Round: Test
Experience: Reasoning / Analytical : there were many questions on venn diagram.. relationships.. cube problem... etc etc... VERBAL: questions on correction of sentences... jumbled sentences.. series... etc etc....
Total Questions: 60

College Name: NIT WARANGAL

Round: Interview
Experience: Duration of interview - 40 minutesInterview panel: 6 scientist from DRDO and one professor from my departmentOnly technical questions were asked except my name (:P)
Question types can be divided into following categories:
1. Process
2. Theory behind the process (mechanism)
3. Practical application4. Alteration in parameters and their effect on process
Tips: if you are answering correctly then they will take you even deeper until you yield (cross questioning) :O but dont worry, speak only if you know the correct answer. be confident and honest (they will help you).

General Tips: Shortlisting on the basis of CGPA
College Name: IIT Roorkee

Round: Test
Experience: Very basic(class 7 level) english, quant and DI from CAT preparation will do. I was asked to estimate the number of newspapers I would buy if I am a supplier for the campus. Then slightly complicated the problem four or five times.
Tips: Try to answer as many questions as possible--the test is the one major criterion for selection.
Total Questions: 65

Round: Guesstimate Interview
Experience: One-on-one interview.Basic guess estimation and details about your projects. Try to show you have some knowledge in mathematics.

Round: HR Interview
Experience: HR interview--A panel of 4 or 5 people(who have taken the individual interviews in round I).
Tips: Be confident and try not to tell something which you can’t defend.

General Tips: As is the case for most companies, CAT preparation will definitely help. I don’t think much focus was was given on the essay but the other sections of the test are really important.
Skill Tips: A decent CGPA(mine was exactly 8) will help. HR interview--A panel of 4 or 5 people(who have taken the individual interviews in round I). Should be able to speak about your own projects and internships.
College Name: IIT KHARAGPUR

Round: Interview
Experience: Its not an elimination round, you can go with your informal clothes on. Any one who has prepared for day 1 and day2 companies will get through this round. Just read news papers and learn to shoot graphs here and there even if it has got absolutely no facts and definitely practice to write a lot.
Tips: Be prepared with both for and against the topic coz the interviewer keeps changing the topic in between the GD.The topic was same as that of the case study Don’t write bullet-ed points, this makes your cases look small. Try applying your vocabulary spectrum. Try to give exhibits even if you don’t know any facts.

Round: Group Discussion
Experience: 12 students on the table, one interviewer.
Tips: Play old school .But don’t wait for your chance, just break into it, but with a gentlemanly attitude. Try giving examples. Throw arbitrary facts to prove your points, if you don’t remember the real figures.

Round: Interview
Tips: Don’t start with your brilliancein your core subject. Tell them you hate your department. Convince them that you won’t ditch them for a Ph.D or an MBA. Tell them you have a friend at Wipro who keeps giving you intel about how great the company is. Look confident and if at times you can be funny, they will appreciate it!!

Skill Tips: 8 and above CGPA is required. Later it was lowered to 7.9, mine was 7.98. They mainly ask HR questions, so being involved in Extra-academic activities gives you more that you can talk of. I had an eye for coding in C++. Helped me on this, but my extra-academics list was enough. Coding was just a bonus. If they are non core its better. But my both the internships were core based. You just have to convince them why you are dropping from core.
College Name: IIT KHARAGPUR

Round: Interview
Experience: Quizzed on opinions of the Construction Industry.

General Tips: 1. Be prepared on the courses and project works that you mention in your resume2. Read newspapers, blogs about the construction industry and keep yourself updated
Skill Tips: """"
Skills: Infrastructure Planning, Infrastructure Management, Construction Management, Project Management
College Name: VIT Chennai

Round: Test
Experience: Aptitude was not too easy or too tough like that of CAT. But if one has prepared for CAT exam even a bit, then he can perform pretty well.
Tips: Practice previous year CAT papers. Question sections and format asked in Capgemini test will be similar to that of CAT exam. Improve reading skills by reading anything that interests you.
Duration: 180 minutes
Total Questions: 120

Round: Other Interview
Experience: You will have to talk with a programmed voice using voice call. You need to follow the instructions of the programmed voice. They will record whatever you speak and judge your speaking skills.
Tips: Try to speak in English with at least few peers.

Round: HR Interview
Experience: You must be well thorough with your CV. Common questions like:*Tell me about yourself?*What are your strength and weakness?*Why consultancy and analyst profile?*What do you know about analyst profile?*What does Capgemini does? Tell us more about Capgemini?
etc can be expected for sure.The HR is not interested in your departmental knowledge, rather he is more interested in the way you are explaining something tin a layman manner. He/She cares how you analyse situations. Some random sitaution may be posed and HR may ask you to analyse the situation.
Tips: #Confidence in yourself.#Well verse with CV.#Able to explain even to layman.#Know basic information about data analytics.

General Tips: Aptitude+Communication fluency+Confidence = Job in  Capgemini
Skill Tips: Practice.
Skills: Aptitude, Communication, Confidence
College Name: I.I.T Guwahati
Motivation: Multi national and reputed.

Round: Test
Experience: 1 Written Test - (20 MCQ + 2 Coding Questions) on HackerRankAmazon visited our Campus on 28th July. In the morning the recruitment process started with the Written Test. It was taken on Hacker Rank which comprised of 20 MCQ Questions followed by 2 Programming Questions. MCQ Questions usually contain questions on C, DBMS, OS, and 4-5 Logical Questions. One should be aware that the Hacker Rank platform keeps record of how much time you have spent on each Question and after spending so much time did you attempt it or not. The 2 Coding Problems were quite easy. Only speed and accuracy was required to crack this round.Written Round Coding Question -1) A Linked List was given and we had to swap the ith node with (n-i+1)th node.2)(given some intervals), merge the common Intervals.I coded both the problems and passed all the test cases of the first question and half of the test cases of the 2nd Question. By the evening the results of the written round were declared and the Interview Process started. I rushed to the Design Centre and while I was arranging my grade sheets and my resume , something totally unexpected happened. One of the Amazon Employees who was also an Alumni of MNIT Jaipur walked up to me and told me that I have done very well in the Written Test and I was ranked 2nd based on the Written Test. He wished me ‘Best of Luck’ and told me to calm down and give my best. Talking to him really motivated me a lot. At the same time I was shocked that he still remembered my name even after an year, as we had talked only for a couple of minutes during my Internship Process in Amazon in which I was among the last 3 Students who went to the final round but was not selected. Apart from the students shortlisted from the written test, Amazon also shortlists around 5-6 more candidates based on their CGPA and some other factors. But it should be noted that at any time during the Recruitment Process, Cumulative scores can be considered.
Tips: CGPA above 8 should definitely be maintained.
Total Questions: 22

Round: Technical Interview
Experience: The Interview Process started with around 25 candidates. I was among the first few with whom the Interview had started which went on smoothly



Questions of Interview Round II –



1) A String was given with a lot of words in it and I had to reverse all the words
2) A String was given and I have to swap word by word from the  beginning to the end.
3) In question 2 when there are ‘n’ in the String whose position shouldn’t get affected during the swapping process
4) Continuation was when more than 1 ‘n’ occur together.



I was asked to code the above, and told them about the time and space complexities. Then he went through my resume and based on my projects he appreciated my interest in OS. and asked me a Question –


You have a large game and a small memory, so how will you play the game.
I told him the concept of Virtual Memory and how it makes it possible to run such a game. Then he asked me whether there is any limit or constraint on the size of the virtual memory. I explained to him if the amount of memory required at any particular moment of time to run the game, itself exceeds the available size in the RAM for the user, then we won’t be able to play. Then he asked “Suppose you have a 4 GB Ram then how much memory will be available to the user and what will happen to the other memory”. I explained that kernel occupies some memory and apart from that page tables and all are also stored in the memory. Then there were some discussions regarding my projects.
Tips: These is some Important stuff which one should not miss while preparing for the interviews :


Languages one should be knowing for Placements:
1) C : For most of the companies
2) C ++ - For Faster coding using Standard Template Libraries and for OOPS Concept3) Java – For some specific companies which are focused on Java


Operating System:
1) Galvin Text Book
2) Video Lectures by Prof. Kamakoti – IIT Bombay (Not available on NPTEL. You can get it from current student of IIT Bombay or take it from me. I have Video Lectures of 2013 Pass out Batch)
3) Good grasp on OS implementation on Linux and Pint OS.
4) Detail Knowledge of How Threading is implemented in JAVA


Computer Networks:
1) Video Lectures by Prof. Sujoy Ghosh – IIT Kharagpur (Available on NPTEL)
2) Good grasp on Linux Networking (Servers and Networking Commands)


DBMS :
1) SQL Queries.
2) Database Implementation in MY SQL (Using B trees)
3) Indexing and Hashing in DBMS
4) Drawbacks of SQL Database
5) No SQL Database – Graph and Document Type Database and how they solve the problems
6) Every minute detail of the Database you have created in your DBMS Project.


Data Structures and Algorithms:
1) Video Lectures on Data Structures by Prof Naveen Garg – IIT Delhi (Available on NPTEL)
2) Video Lectures on Data Structure and Algorithm by Prof. Charles Leiserson and Prof. Erik Demaine - MIT.
3) TextBook – “Data Structures and Algorithms made Easy” by Karumanchi
4) TextBook – “Cracking the Coding Interview” by Gayle Laakmann Founder and CEO, CareerCup.com
5) GeeksforGeeks6) Company Specific Preparation by Practicing Previous Interview Papers


Programming Practices:
1) Codechef or Any other Coding Website: Experience helps to increase your Programming Speed, definitely useful in qualifying Coding Round
2) Standard Template Library in C++ for faster Coding - Hacker Rank Tutorial


Other Stuff to Study:
1) Brain Teasers
2) Design Problems (asked by Companies like Adobe. Detailed Example in Karumanchi Textbook)
3) Logical And Aptitude Preparation – Arun Sharma TextBook
4) HR Interview preparation from Indiabix.com

Round: Other Interview
Experience: Around 17 students were shortlisted. The resumes of students and their academic projects were given importance while shortlisting for this round. It started at around 10PM.



Questions of Interview Round III –



1) There is a big file containing numbers and we have to sort all of them.



I mentioned the approach mentioned in GeeksforGeeks that for example the available RAM for this purpose is 100 MB. So we can break the File in chunks of 100 Mb and bring the chunks in Memory and first sort them individually. Then we can prepare a heap containing first elements from all chunks. And keep extracting min from heap and replace it by next smallest element of the chunk it belongs. Then he asked if the number of chunks being formed here are very large, that is the heap I am preparing won’t fit in 100MB, then what to do. I suggested some further modifications and finally he was satisfied with the solution.



2) How to implement word suggestions like that in Eclipse.



I explained that it can be done using Tree Data Structure or using some sort of multilevel hashing in combination with storing words in sorted form. He asked me time complexities and told me to think of further improvements. He wasn’t completely satisfied and moved onto the next question.



3) Given 2 integers a and b, the sequence which will be formed is a, b, a+b, a+2b….



i.e Current element = sum of the previous 2 elements.



So now given a number k, how to figure out if it lies in the sequence or not.



This Question is not as easy as it looks. Here a and b can be negative or positive so the Generated Sequence can contain all positive or all negative or alternate occurrence of positive and negative element in sequence. So till which point should we generate the sequence and decide that k can or cannot lie in the sequence. I wrote a code but he mentioned few test cases in which my code was failing. After a few modifications I was able to write a satisfactory code solving all the test cases.

Round: Other Interview
Experience: I answered both the questions and also mentioned  solution to kth largest if Deletion operation is also there and if it is not. Then he told me to write the code for Heapify Function. Again there were some discussion regarding my Projects.

Round: Other Interview
Experience: Questions of Interview Round V -
This round started with a detailed discussion about my Summer Internship Project in Wooqer. After that I was asked to introduce myself. Then he asked me -

1) Given an Infix expression, how to evaluate its answer.

I was asked to write the code for it covering all the cases and I was given half an hour to do it. I wrote it in about 15-20 minutes. Interview of 4th Round got over by about 9 PM, and the results were declared by 11PM.
Tips: Amazon mostly focuses on – Tries, Big Data, Hashing, Strings. Apart from my general preparation for the Interview, I had gone through around 60 Amazon Interview Papers available on GeeksforGeeks, so I was totally aware of the kind of Questions I would be facing in the Interview, and prepared myself accordingly. In this year’s Amazon Interviews mostly the questions asked were not directly from GeeksforGeeks. And few questions which were picked directly from GeeksforGeeks, the solution they were expecting for it was better than that mentioned in GeekforGeeks. But to guess such a solution, one should surely be aware of all the existing solutions in GeeksforGeeks.

General Tips: Self Projects have a very high weight age in one's selection because this is one of the many things that distinguishes you from other candidates sitting in the Interview. It also shows your capabilities and your field of Interest. Also, Summer Internship surely matters a lot in Companies like Amazon. There was a very detail discussion of my Internship at Wooqer during the Interview Process at Amazon so be prepared.
College Name: NIT JAIPUR

Round: Resume Shortlist
Experience: Shortlisted on CGPA>8

Round: Test
Experience: Only one test was conducted on data interpretations and then shortlisting based on test scores was done.

Round: Group Discussion
Experience: Group discussion was conducted and mostly related to their sector topics were given.

Round: HR Interview
Experience: Interview was of only one round and in it both HR and technical were completed in 15 minutes.

Skill Tips: Quantifying most of things in your resume and also in interview would give a good impression.Internships also does matter and questions on AVOVA in statistical courses are also focused.For chemical dept, Statistical design and analysis of experiments course gives the edge over others.Questions related to logistic regress were also asked.
College Name: IIT MADRAS

Round: Resume Shortlist
Experience: CGPA above 8

Round: Test
Experience: These involve questions from aptitude.
Tips: R S Agarwal's book on aptitude is enough for preparation.
Duration: 80 minutes

Round: Group Discussion
Experience: 11 members were part of the GD. The GD was not a rejection round.
Duration: 20 minutes

Round: HR Interview
Experience: Basic Questions.
Tips: Just prepare normal questions for HR.

General Tips: Prepare from placement material from LAN.
Prepare basic fundaes.
College Name: IIT MADRAS