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Data Unveil Interview Questions and Answers
Data Unveil Interview Experiences
6 interviews found
Anonymous
Selected
I applied via LinkedIn and was interviewed in May 2024. There were 2 interview rounds.
(1 Question)
- Q1. Basic Introduction and asked about aggregate functions in SQL
(2 Questions)
- Q1. Asked 3-4 sql questions based on case statement and window functions.
- Q2. Asked to explain the project on Which I have worked and technologies used like aws lambda,S3 ,redshift
Interview Preparation Tips
Data Analyst Interview Questions asked at other Companies
I applied via LinkedIn and was interviewed in Dec 2023. There was 1 interview round.
(3 Questions)
- Q1. 1. Fetch last record of the column. 2. Dense rank vs rank 3. Fetch end of 5 character from the string of the column
- Ans.
The interview questions are related to SQL and data manipulation.
To fetch the last record of a column, you can use the ORDER BY clause with DESC keyword and LIMIT 1.
Dense rank and rank are both ranking functions in SQL, but dense rank assigns consecutive rank numbers to rows, while rank leaves gaps in the ranking sequence.
To fetch the end of 5 characters from a string column, you can use the RIGHT function in SQL.
- Q2. What type of data validation you performed.
- Ans.
I performed various types of data validation including format validation, completeness validation, and referential integrity validation.
Format validation: Ensuring that the data is in the correct format as per the defined specifications. For example, validating that a date field is in the format 'YYYY-MM-DD'.
Completeness validation: Checking if all the required fields are present and populated in the data. For example,...
- Q3. What customer do with data.
- Ans.
Customers use data for various purposes such as analysis, decision-making, reporting, and personalization.
Data is used for analysis to gain insights and identify patterns or trends.
Data helps in decision-making by providing information and supporting evidence.
Data is used for reporting to communicate information and track performance.
Data enables personalization by tailoring products or services based on customer prefe...
Interview Preparation Tips
If I get selected also, I will not be joining this company where basic technical knowledge is lacking.
Skills evaluated in this interview
ETL Tester Interview Questions asked at other Companies
(1 Question)
- Q1. Can you join in 15 days ?
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Data Analyst Interview Questions asked at other Companies
(1 Question)
- Q1. In context to experience
Assistant Manager- HR Interview Questions asked at other Companies
Data Unveil interview questions for popular designations
Selected
I was interviewed before Jan 2024.
(1 Question)
- Q1. The questions were about SQL
(1 Question)
- Q1. The questions were about SQL
Senior Database Developer Interview Questions asked at other Companies
Selected
I applied via Approached by Company and was interviewed before May 2023. There was 1 interview round.
(1 Question)
- Q1. Sql basics and Joins
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Software Engineer Interview Questions asked at other Companies
Jobs at Data Unveil
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I was interviewed in Mar 2017.
Interview Questionnaire
1 Question
- Q1. Views on their recruiting process
- Ans.
I believe the recruiting process is thorough and well-organized.
The company uses a combination of resume screening, interviews, and assessments to evaluate candidates.
They have a clear timeline for the hiring process and keep candidates informed of their progress.
Feedback is provided to candidates after interviews to help them improve for future opportunities.
Interview Preparation Tips
Experience:
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
I applied via Naukri.com and was interviewed in Sep 2022. There were 3 interview rounds.
SQL test has been conducted nearer to 12-15 questions.
(2 Questions)
- Q1. Normal discussion, about salary negotiation
- Q2. Asked about my past company experience
Interview Preparation Tips
They have lots of opportunities.....................
(1 Question)
- Q1. All basic concepts of pthon sql and ml
Apptitude, tecncal, cognitiive
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