Balaji Digital Services Dungarpur Interview Questions and Answers

Round: Test
Experience: Data interpretation questions,english vocabulary(GRE BARRONS) is most important , apptitude questions and reasoning are from R S agarwal.
Total Questions: 65

Round: Technical Interview
Experience: Interviewer asked about your core subject littlebit and dont have any deep questions from c and c++.

Round: HR Interview
Experience: Given a topic and asked me to speak about that topic for one minute and given a situation asked me how would you react on that situation.

General Tips: It is easy to get a job in infosys comparatively other companies because you dont need to prepare for software side.
Prepare aptitude and reasoning from R S Agarwal and GRE BARRONS for vocabulary
College Name: NIT WARANGAL

Round: Test
Experience: In email writing one question was given describing the situation and maximum word limit. It has the keywords given to be used. 1 question, 10 minutes.This section is generally used to check your verbal ability. Make sure to use all the keywords given and complete it within time, with no spelling mistakes of course. Missing a keyword or a spelling mistake could be your goodbye to qualified list.The second section had 30 questions of quantitative aptitude. Duration 70 mins. There are questions from various sections, such as Time and speed, Time and distance, Data interpretation,etc.There are 2-3 star marked questions which have more weight-age. There my also be a dummy question who doesn't have any matching answer. Make sure uh don't attempt these questions.26-27 questions is the cut-off for qualified list.But you have to do the email writing part correctly.
Tips: Practice email writing online from various websites such as technicalbaba.com, indiageeks.comPractice quantitative aptitude as it is a must in any interview you will face. you can use R.S.Agarwal or CAT material.
Duration: 90 minutes
Total Questions: 30 + 1

Round: Interview
Experience: Greeting the interviewer is a must. Be confident and enthusiastic. Have your resume properly ready. Technical questions from your subject will be asked. Not a must that you should know any programming language like C, C++, JAVA.
Tips: Prepare 3-4 subjects of your core branch. Never try to flatter the interviewer. Be confident and answer the questions appropriately. Dont say directly " I DON'T KNOW". Atleast try even if you dont know the answer.

Round: Interview
Experience: There are certain questions which doesnt have direct answers. You have to be diplomatic about them. You should be able to see all the possible situation when a question like that is asked.

Round: Interview
Experience: The HR head may manipulate you, try to stress you, etc. Be calm and confident.Think before you speak. Prepare your answers before hand for general questions. Write your introduction on a paper and prepare it well so that you speak it confidently...
Tips: Be yourself. Be confident. Never argue with the interviewer.All the best

General Tips: Be presentable in the interview. Wear a watch. Show respect to the interviewer. Prepare 3-4 technical subjects well. Read last 15 days newspaper. Be confident when you speak. Improve your English if you are weak in it.
Skill Tips: ""
Skills: Verbal ability, Attitude, Technical knowledge, General knowledge
College Name: IMS ENGINEERING COLLEGE, GHAZIABAD
Motivation: TCS is a semi government company with a decent package and high job security.

Round: Test
Experience: Shortlist is done based on the result of the test conducted. The test consists of two parts basic quantitative skills and a short essay to test your English
Tips: Math and Puzzle solving skills are useful They were looking for people with good math skills and team player

Round: Interview
Experience: Interview was held in two rounds. No technical round is held. One should be prepared for basic HR questions, your understanding of your projects etc.
Tips: There is no technical round and no emphasis on technical background
Prepare for all the basic HR questions beforehand, write them down
Get to know your resume very well

College Name: IIT Madras

Round: Resume Shortlist
Experience: Candidates with CG equal to or higher than 8.0 were selected.

Round: Test
Experience: It was divided in 2 sets of 45 minutes each.
Coding: To write a function to find if a string is palindrome or not. 
Verbal+quant: These were CAT model questions.
Duration: 90 minutes

Round: Interview
Experience: There were 2 rounds of this interview. Both were HR and questions based on resume and some general questions were asked.
Tips: I think I was selected because of my CG, coding skills and communication skills.

General Tips: If you're preparing for core, make sure you start revising your subjects soon. Keep your notes and concentrate on structures.
Skill Tips: I started my preparations in November by going through case study material available in lan and solving CAT questions.
College Name: IIT MADRAS

Round: Test
Experience: CAT type questions on maths and English. Speed matters. Preparation for CAT helps, I did not sit for CAT but I went through is DI material before the test to increase my speed. Questions in general are easy. Conduct yourself professionally. Deloitte decides to allot you a profile depending on your score in this test most probably. So make sure you do well in this test. I think the highest scoring candidates are shortlisted for the S&O profile, though I am not sure about it.
Tips: If you are up for a career in management consulting and can't possibly be shortlisted by Mckinsey or BCG, this is your golden opportunity. You have to do well in the test for it. Deloitte is one of the best places in the world for management consulting after MBB firms and I believe some people might have gotten selected for this profile just because they did well in this test (by fair or unfair means!!)

Round: Group Discussion
Experience: You are given a case. Your group of 10 has to find a solution for a client. The process lasts for about 30 minutes. The key is staying calm and composed and not disputing and challenging others violently! At the end you are supposed to give a presentation on the problem and it solution, 5 minutes for each member.
Tips: Speak less rather than speaking trash. Introduce yourself first when asked to give your part of the presentation and behave professionally, they check more on your professional behavior than the effectiveness of your solution. 50 % of the students passing this round generally make it to the offer. Hence this is the most important round. If you have done very well in this round you will probably do well in the PI.

Round: Behavorial Interview
Experience: Behavioral questions base on your resume.
I had networked a bit with my interviewer before the interview because both of us were waiting to enter the interview room and it felt awkward not talking to him. I think that might have helped.

Dont go for a technology profile hoping you will get to enter the management consulting space some day. Technology consulting is a good career choice only if you are passionate about it, or else it is a disaster, since the only exit route is an MBA application.
Dont go without reading about the company, it was a big source of worry for me
Tips: Answer the questions diplomatically. Appearing confident helps. I kept a smiling face no matter how tensed I was, that might help.
Know all the points in your resume and prepare to answer all behavioral questions you can possibly think of.
Have some questions to ask at the end of the interview.

General Tips: Its good if you have some extra academic involvement to have some discussion points during your PI. Or when you are asked about an achievement you are very proud of.
Skill Tips: I felt the company loves to hire calm and professional people who can articulate themselves properly. And do well in the written test if you want a profile of your choice.
Deloitte is probably the only company to be able to compete with the likes of Mckinsey in management consulting and IBM in technology, at the same time. No doubt, it is a great brand name to work with. It is highly rated in both the fields.
Strategy and Operations is a very good career if you are looking for management consulting, they have a program to train and sponsor you for the best B-Schools in the world.
The technology profiles are good if you are passionate about technology and its integration.
So be careful about your choices.
College Name: IIT Kharagpur

Round: Other Interview
Experience: 1 round of 10 minutes duration.
Depends very much on what position they are trying to fill in and area of expertise of the interviewer(s). They asked me basic questions on Image Processing. Interview went decent

College Name: IIT MADRAS

Round: Test
Experience: Be confident but dont be over confident
Tips: solve as many papers u can to crack dis test
Duration: 60 minutes
Total Questions: 50

Round: Group Discussion
Experience: Be clear about ur thots.
Tips: Try to speak more & relevant to the topic.
Duration: 15 minutes

Round: Technical Interview
Experience: being honest will help u clear this round
Tips: Be UP to DATE..

General Tips: Develop coding skills& logics also understand the basic math formulaes
College Name: TERNA ENGINEERING COLLEGE
Motivation: If u can Dream IT , U can Definetly Achieve IT.. :)
Funny Moments: :D

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: HR Interview
Experience: The process is a little different. It started with a Group interview in batches of 4 —- (total shortlisted – 28)

Round: Technical Interview
Experience: 1.Clear regarding the profile

2.Impressed with my Group Interview and was called for the next round before GIs got over

3. Justification for the profile is good
Tips: (Be careful with the financial terms you use)

General Tips: They will start with a specific question and they dig deeper. Stay calm, chill panel. Prepare the HR given above
Skills: Economics, Banking
College Name: NA