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Data Unveil ETL Tester Interview Questions and Answers
Updated
4 Jan 2024
1 interview found
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Anonymous
Interview experience
Bad
Difficulty level
Easy
Duration
Less than 2 weeks
Result
No response
I applied via LinkedIn and was interviewed in Dec 2023.
1 Interview Round
1
One-on-one 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 View Answers (1)
- Q2. What type of data validation you performed. View Answers (1)
- Q3. What customer do with data. View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - Interviewer (CTO - Asif Ali) was not aware of Left(), Last(), top 1, etc. functions in SQL. He said "is these functions exist in SQL". 🤣
If I get selected also, I will not be joining this company where basic technical knowledge is lacking.
If I get selected also, I will not be joining this company where basic technical knowledge is lacking.
Skills evaluated in this interview
Top trending discussions
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Interview Tips & Stories
2w (edited)
a consultant
Alternate documents for Employee verification?
My new employer asked for my previous offer letters and salary slips. When I inquired, they said it was for background verification.
However, I feel that providing these documents might affect salary negotiations, and it feels a bit unethical too.
What alternative documents can I provide for employment verification?
Got a question about Data Unveil?
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Interview questions from similar companies
Interview experience
Average
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
No response
I applied via LinkedIn and was interviewed in Nov 2024.
1 Interview Round
1
Technical Round (2 Questions)
- Q1. What is deferred bug Add Answer
- Q2. Query to get 4th highest row based on a column Add Answer
Interview experience
Excellent
Difficulty level
Moderate
Duration
-
Result
Not Selected
I applied via Recruitment Consulltant and was interviewed in Sep 2024.
1 Interview Round
1
Technical Round (4 Questions)
- Q1. What is the Difference Between Drop and Truncate Command ? View Answers (1)
- Q2. What are the Validations you Perform in your Project ? View Answers (1)
- Q3. What is Star Schema and Snow flake schema ? View Answers (1)
- Q4. What is Fact and Dimension Tables View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - Be Clear on Basics in First Round then go more Deeper in SQL Part for ETL Testers in Round 2
Skills evaluated in this interview
Lavanya Shankar
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I was interviewed in Nov 2024.
1 Interview Round
1
Technical Round (2 Questions)
- Q1. Append a item in tuple Add Answer
- Q2. How to validate response body in api in restapi Add Answer
Interview experience
Good
Difficulty level
Moderate
Duration
2-4 weeks
Result
No response
I applied via Naukri.com and was interviewed in Aug 2024.
1 Interview Round
1
Technical Round (4 Questions)
- Q1. Explain project architecture? View Answers (1)
- Q2. Explain challenges you faced in etl testing? View Answers (1)
- Q3. What are roles and responsibilities? View Answers (1)
- Q4. How to find duplicate values in python? View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - ETL Concepts, Datawarehouse concepts and Python also must required
Skills evaluated in this interview
Interview experience
Average
Difficulty level
-
Duration
-
Result
Selected
I applied via Naukri.com and was interviewed in Jul 2024.
2 Interview Rounds
1
Technical Round (10 Questions)
- Q1. Write an SQL query to fetch 5th ,10th,15th .. records from a table? View Answers (1)
- Q2. What are constraints? View Answers (1)
- Q3. What is Low Priority , Medium Priority & High priority defects? View Answers (1)
- Q4. White box , Black Box ,regression , Retesting? View Answers (1)
- Q5. Joins ? with example View Answers (1)
- Q6. Window function queries? Add Answer
- Q7. Domain name from an email ? View Answers (1)
- Q8. Rank dense_rank() ,row_numebr with example? View Answers (1)
- Q9. SCD Types , Star Schema Vs SnowFlake Schema View Answers (1)
- Q10. Group by clause and how it work with a query View Answers (1)
2
HR Round (4 Questions)
- Q1. Salary expectations Add Answer
- Q2. Where do you see yourself in 5 years Add Answer
- Q3. Reason for job switch? View Answers (1)
- Q4. Strengths & weakness ? View Answers (1)
Skills evaluated in this interview
Interview experience
Average
Difficulty level
Easy
Duration
2-4 weeks
Result
-
I applied via Naukri.com and was interviewed in Mar 2024.
1 Interview Round
1
Technical Round (4 Questions)
- Q1. Explain inner join with an example View Answers (1)
- Q2. Explain cross join with an example View Answers (1)
- Q3. Provided Employee Table and asked to do a self join Add Answer
- Q4. Explain different types of data validation and checks performed in ETL testing View Answers (1)
Skills evaluated in this interview
Interview experience
Good
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (4 Questions)
- Q1. What are scd types View Answers (1)
- Q2. How you identify duplicates and how to find latest duplicate View Answers (1)
- Q3. What is the difference between star schema and snowflake schme View Answers (1)
- Q4. What are the test articrafts View Answers (1)
Skills evaluated in this interview
Interview experience
Excellent
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (2 Questions)
- Q1. Etl tools and technologies Add Answer
- Q2. Types of scd dimensions View Answers (2)
Skills evaluated in this interview
Interview experience
Good
Difficulty level
Moderate
Duration
2-4 weeks
Result
No response
I applied via Naukri.com and was interviewed in Jan 2024.
1 Interview Round
1
Technical Round (1 Question)
- Q1. Difference between snowflake schema and star schema View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - Stay clam and tell me the truth.
Data Unveil Interview FAQs
How many rounds are there in Data Unveil ETL Tester interview?
Data Unveil interview process usually has 1 rounds. The most common rounds in the Data Unveil interview process are One-on-one Round.
What are the top questions asked in Data Unveil ETL Tester interview?
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