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Chain-Sys Data Engineer Interview Questions and Answers
Chain-Sys Data Engineer Interview Experiences
1 interview found
Anonymous
I applied via Approached by Company and was interviewed in Nov 2023. There was 1 interview round.
(2 Questions)
- Q1. Difference between Delta lake and data lake
- Ans.
Delta Lake is an open-source storage layer that brings ACID transactions to Apache Spark and big data workloads.
Delta Lake provides ACID transactions, schema enforcement, and time travel capabilities on top of data lakes.
Data lake is a storage repository that holds a vast amount of raw data in its native format until it is needed.
Delta Lake ensures data reliability and data quality by providing ACID transactions.
Data l...
- Q2. Data warehousing and data modelling
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
Software Engineer Interview Questions & Answers
Altair Engineering
Sameer Mandge
posted on 31 Aug 2015
Interview Questionnaire
6 Questions
- Q1. Tell something about yourself
- Ans.
I am a software engineer with 5 years of experience in developing web applications using Java and JavaScript.
I have a Bachelor's degree in Computer Science.
I am proficient in Spring Framework and AngularJS.
I have worked on projects involving RESTful APIs and microservices architecture.
I am a quick learner and enjoy working in a team environment.
- Q2. Why do you want to join this company?
- Ans.
I am impressed with the company's innovative approach and commitment to excellence.
I have researched the company and its products extensively and am excited about the potential for growth and development.
I am impressed with the company's reputation for innovation and cutting-edge technology.
I believe that the company's commitment to excellence aligns with my own values and goals.
I am excited about the opportunity to wo...
- Q3. What are your future plans?
- Ans.
My future plans include continuous learning, honing my skills, and contributing to the growth of the company.
I plan to attend relevant conferences and workshops to stay updated with the latest technologies.
I want to work on challenging projects that will help me improve my skills.
I aim to become a valuable asset to the company by contributing to its growth and success.
I plan to mentor and guide junior developers to hel
- Q4. Mathematics
- Q5. Programming
- Q6. Logic
Interview Preparation Tips
Experience: It was a bit lengthy and I wasn't able to solve all the questions, but the rest was accurately completed by me.
Tips: One needs to know basic programming and logic. The rest is doable. Pay attention to time and the accuracy of your answers.
Duration: 120 minutes
Total Questions: 50
Round: Group Discussion
Experience: A few points were given to us and we had to proceed from there. I gave new ideas as well as new points of view on the already presented ideas. I also encouraged others to participate.
Tips: Don't be too quiet/passive or too loud/active. Let others also talk and don't talk about the same points again & again.
Duration: 15 minutes
Round: HR Interview
Experience: It was a good interview. I felt at ease and myself while talking about me. The CTO of the company was conducting it.
Tips: See the direction in which the interview is going and frame your answers accordingly. Tell them what they want to hear, but don't lie.
Round: Technical Interview
Experience: It was a telephonic interview, and the HR team present there was guiding me through it. The questions were easy.
Tips: Be confident while answering the questions. Don't think too much on it, and answer appropriately. Be clear and concise.
General Tips: As I said earlier as well, be yourself and be confident.
Skill Tips: Be adequately prepared on what you prepare for; know the ins and outs of the company you are sitting in for; be confident and clear on what you speak.
Skills: Programming, Logic Building, Common Aptitude, Personality
College Name: IIT Bombay
Motivation: I wanted to do programming which was also in the engineering domain. Hence Altair came as the perfect fit for me.
Funny Moments: I was not able to listen properly to the telephonic interview, but the CTO was impressed with me in the HR interview so he happily guided me through. I also found out that one of the seniors interviewing me was from the same place as that of mine, so we had a small discussion there as well. I felt at ease hence.
Software Engineer Interview Questions & Answers
Altair Engineering
Pranay Kumar
posted on 10 Mar 2015
Interview Preparation Tips
Experience: My experience with IITB racing for more than 2 years helped me with this process. Additionally, my work as an electronic differential engineer which required development of a detailed vehicle model was more closer to the
College Name: IIT BOMBAY
Interview Preparation Tips
Experience: The questions were of medium to high difficulty. What set this test apart was the fact that each question had different weightage ranging from 0.5 to 3 marks per question. Time was a major factor. So my strategy was to attempt all the 1 and 1.5 marks questions which constitute the major chunk of the paper in around 40 minutes and spend the remaining 20 minutes for the 2 and 3 mark questions. I did not even bother reading the 0.5 mark questions. The 2 and 3 mark questions were difficult and those will differentiate you from others. 1600 students wrote the test and only 86 got shortlisted for the next round.
Duration: 60 minutes
Total Questions: 40
Round: Technical Interview
Experience: I was asked to write a C program to print the Fibonacci sequence and a basic SQL query. Apart from this I was asked a puzzle and other questions related to my resume. Out of the 86, only 26 students were called for the next round which again was a technical interview.
Round: Technical Interview
Experience: This was similar to the first technical interview. I had to write a C program to print the prime numbers between 1 and 100 and a puzzle was asked again. Apart from this a guesstimate to find the number of cars between 2 places was asked and a scenario based question too was asked. These were followed by resume related questions.
Round: HR Interview
Experience: All the 26 students who attended the second technical round were allowed to attend HR round as well. This was just for 4 - 5 minutes. I was asked about my family background and why I should be hired. My fondest memories from school days were asked too. Finally offer letter was given to 10 students out of the 1600 who wrote the test :P
General Tips: Just keep a calm head and attempt the questions. Ask for time to think if you are not able to answer the questions immediately. Be bold and confident. That is sufficient :)
Skills: Puzzle Solving Capability, Ability To Think, SQL, C Programming
College Name: VIT Vellore
Interview Preparation Tips
Tips: Screening test is done online and contains objective questions..
Total Questions: Online
Round: Group Discussion
Experience: Shortlisted candidates were divided in groups of 9-10 students for group discussion. GD lasted for about 40 min.
Duration: 40 minutes
Round: Interview
Experience: Technical interview was of about 35 min. There was no hr interview. Questions were related to the projects that the candidate performed during his stay at IIT Roorkee. Two puzzles were also asked. Other questions were based on the answers that the candidate gave to the previous questions.
General Tips: This company looks for people with strong technical aptitude. So do not shy from showing all your projects. In other companies too many projects may lead them to believe that you are more interested in pursuing research and will leave the company soon. This may have a negative effect on other companies. But at Altair it is good to show all your projects, your research publications, any additional courses taken. Along with your technical projects it will be good if you could show them your coding ability. They are looking for technical people with a stint for coding.
College Name: IIT ROORKEE
Motivation: Altair deals with engineering services, product design, and engineering finite element software development (eg. hypermesh, hypermath, etc). The profile for which it takes the new recruits is for engineering software code writer.
Interview Preparation Tips
Experience: Written Test – 50 ppl appeared 15 were shortlisted for interview, 3 were finally selected. Technical interview mainly based on project and the basics of the subject HR – be pleasing If someone wants to appear for this company. .
Tips: Prepare some common topics such as globalization, reservation in IITs and IIMs, etc.
General Tips: Never let them ask you the points in which you are weak& Always lead the interviewer to the questions that you are expecting.
College Name: IIT BOMBAY
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Problem solving and string processing
Interview Preparation Tips
I applied via Naukri.com and was interviewed before May 2021. There were 4 interview rounds.
It was mixed like aptitude and from technical.
(1 Question)
- Q1. It was F2F round. Where technical questions were asked.
(1 Question)
- Q1. Managerial round. It includes technical and managerial both
(1 Question)
- Q1. HR round. It includes all the HR level questions
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Aug 2021. There were 4 interview rounds.
Coding cum aptitude test on Hackerrank
(1 Question)
- Q1. First round interview . Consisted questions based on projects , dsa
(1 Question)
- Q1. Round 2 . Question based from core technology. Micro services , etc
(1 Question)
- Q1. Basic hr questions . Why are you fit for this role kind of things
Interview Preparation Tips
I applied via Company Website and was interviewed in Jan 2022. There were 5 interview rounds.
- 30 MCQ questions mostly related to HTML, JS & C#
- 2 easy-moderate coding questions
- Aptitude test on CoCubes (12 mins)
- English Test (speaking + writing + reading + listening) on Pearson platform
(4 Questions)
- Q1. Print the following pattern: (was asked to complete test execution within 10 mins) ****4 ***444 **44444 *4444444 444444444
- Q2. Find the length of longest substring composed of same digit, within a string of digits: (was asked to complete within 10 mins) E.g. 01241XXXXX901111 Output: 4 Explanation: "1111" is the longest substring
- Ans.
Find the length of longest substring composed of same digit within a string of digits.
Iterate through the string and keep track of the current digit and its count
Update the maximum count whenever a new digit is encountered
Return the maximum count
- Q3. An SQL SPROC that is supposed to return tabular data is running slowly, what are the different ways you could debug it?
- Ans. 1. Check for unnecessary columns in SELECT statement 2. Check if there's any cursor present in the SPROC 3. Check if columns have been properly indexed (specifically the columns being used in ORDER BY) 4. Check if data is being paged 5. etc.
- Q4. An API is running slow. Upon investigation it was found that SPROC running behind it is perfectly optimized. How can you debug this behavior of API? (You can neglect the resolve time & connect time of the ...
- Ans.
To debug the slow behavior of the API, analyze network latency, check for database issues, monitor server performance, and review code for potential bottlenecks.
Analyze network latency to identify any issues with data transmission.
Check for database issues such as slow queries or insufficient indexing.
Monitor server performance to ensure it has enough resources and is not overloaded.
Review the code for potential bottle...
(3 Questions)
- Q1. Check if two strings are anagrams of each other. Follow up question: solve it in O(N) time. (Time limit to solve question: 10 mins)
- Q2. Given Tables: 1. Authors (AuthorId PK, Name) 2. Books (BookId PK, AuthorId FK, Name) 3. Orders (OrderId PK, BookID FK, AuthorId FK, StoreName) Write SQL query to print following information for each autho...
- Q3. Questions about an open source distributive caching project that I implemented. Wanted to know what flaws do I see in the project and how do I plan to resolve them. Few follow up questions regarding cachin...
(3 Questions)
- Q1. Given an array of integers (both positive and negative) find the maximum and second maximum number without using sort and using only single loop.
- Ans.
Find maximum and second maximum number in an array without using sort and single loop.
Initialize max and secondMax variables to the smallest possible integer value
Iterate through the array and update max and secondMax accordingly
Return max and secondMax as the result
- Q2. Given Table: Weather (CityName, Date, Temperature) Write an SQL query which prints the following: "CityName, Today's Temperature, Yesterday's Temprature" (if yesterday's temperature doesn't exist, then p...
- Q3. Given Table: ExamResults (StudentName, SubjectName, Marks) Write an SQL query to print the following: 1. "Student Name, Percentage" (Marks are out of 100) 2. List of all students having percentage great...
Interview Preparation Tips
2. They'll not be testing your coding knowledge, but rather your problem solving skills. Make sure to keep talking about whatever logic comes to your head.
3. Don't be nervous, the interviewers are friendly.
Skills evaluated in this interview
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Chain-Sys Data Engineer Interview Process
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