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Nielsen Data Engineer Interview Questions and Answers
Nielsen Data Engineer Interview Experiences
5 interviews found
I applied via Instahyre and was interviewed in Dec 2024. There was 1 interview round.
(2 Questions)
- Q1. Basic Spark, Python, SQL Questions.
- Q2. Some Data Modelling Questions.
I applied via Company Website and was interviewed in Jul 2024. There were 2 interview rounds.
Aws, scala and cloud concept
(1 Question)
- Q1. Python question
(2 Questions)
- Q1. What is pip in python
- Ans.
pip is a package manager for Python that allows you to install and manage libraries and dependencies.
pip is used to install Python packages from the Python Package Index (PyPI)
It can also be used to uninstall packages, upgrade packages, and list installed packages
Example: 'pip install numpy' installs the numpy package
- Q2. Questions on join
Skills evaluated in this interview
(2 Questions)
- Q1. Spark arcitecture
- Q2. Partitions and bucketing
Nielsen interview questions for designations
I applied via Monster and was interviewed in Jun 2021. There were 3 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Current Work, Why Nielsen, Kind of Work Expected in Future?
- Q2. Compensation Expectation?
- Q3. Tech Stack and Skills
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
I applied via Campus Placement and was interviewed in Oct 2022. There were 4 interview rounds.
1 easy sql and 1 easy python for 55 min
1 easy python and very hard sql for 1 hr 50 min
(2 Questions)
- Q1. Mainly they focused on the answers you have written on round 2 and basic sql and pandas in python
- Q2. 1) write a join 2) implement left join using pandas
- Ans.
Answering a question on writing a join and implementing left join using pandas for Data Analyst role.
To write a join, we need to identify the common column(s) between two tables and use the JOIN keyword in SQL.
Example: SELECT * FROM table1 JOIN table2 ON table1.common_column = table2.common_column
To implement left join using pandas, we can use the merge() function with how='left' parameter.
Example: pd.merge(table1, tab
Interview Preparation Tips
Skills evaluated in this interview
I was interviewed in Jul 2017.
Interview Questionnaire
3 Questions
- Q1. Tell me about yourself?
- Ans.
I am a data analyst with a strong background in statistics and programming.
I have a Bachelor's degree in Statistics and have completed several courses in programming languages like Python and SQL.
I have experience working with large datasets and conducting data analysis using statistical techniques.
I am proficient in data visualization tools like Tableau and have created interactive dashboards to present insights.
I hav...
- Q2. Why this company?
- Ans.
I am interested in this company because of its strong reputation in the data analytics industry and its commitment to innovation.
The company has a proven track record of success in the data analytics industry.
It has a strong reputation for delivering high-quality insights and solutions.
The company values innovation and encourages employees to think creatively.
There are opportunities for professional growth and developm...
- Q3. Why do you want to make a career in this field inspite being an engineer?
- Ans.
I am passionate about using data to solve complex problems and make informed decisions.
Data analysis allows me to apply my analytical skills and engineering background to extract valuable insights from data.
I enjoy working with numbers, statistics, and programming, which are all essential skills in the field of data analysis.
Data analysis offers a wide range of opportunities to work on diverse projects and industries, ...
Interview Preparation Tips
Experience: The written test consists of 2 sections. First section is of verbal reasoning which is very easy. And second section consists of data interpretation, quant questions.
Tips: Speed and accuracy are important in this test. Daily practicing of aptitude can get you through the exam.
Duration: 45 minutes
Total Questions: 40
Round: Technical + HR Interview
Experience: After entering the interview room, the first question asked to me was "Walk me through your CV ".After that, I was asked some puzzle questions, one math question and a case study question which was bit difficult. The interviewer was trying to make me stressed by picking one of my strengths and saying that he considers it as my weakness. He was not convinced with whatever I said but in order to overcome above stress be clam and cool. Say what you know without hesitation, be strong, and be yourself. Last but not the least, don't bluff because he will eventually figure it out, even if you bluff say it convincingly.
Tips: Be perfect about what you have written in your CV and just be yourself.
Round: HR Interview
Experience: HR round was very cool . Actually the panel was friendly with me. They asked some common HR questions. That's it about this round.
Tips: Be fluent and develop good communication skills.
College Name: NIT Bhopal
Software Engineer Interview Questions & Answers
Euromonitor International
Anonymous
posted on 19 Jul 2022
I applied via Recruitment Consulltant and was interviewed in Jan 2022. There were 2 interview rounds.
(1 Question)
- Q1. OOPS concepts, function overload, override,interface,string, string builder
(1 Question)
- Q1. Company profile,salary discussion
Interview Preparation Tips
Don't give unnecessary answers
Be possitive
Software Engineer Interview Questions & Answers
Euromonitor International
Anonymous
posted on 6 Oct 2022
I applied via Referral and was interviewed before Oct 2021. There were 3 interview rounds.
(2 Questions)
- Q1. Basic concept of c#,.net framework
- Q2. What is CFA and DFA in entity framework core
- Ans.
CFA and DFA are Change-Tracking and Database-First Approaches in Entity Framework Core.
CFA (Change-Tracking Approach) is used to track changes made to entities in memory and then save them to the database.
DFA (Database-First Approach) is used to generate entity classes and DbContext from an existing database schema.
CFA is useful when working with disconnected entities, while DFA is useful when working with an existing ...
(1 Question)
- Q1. Basic questions
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. Self introduction research secondary research
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Nielsen Interviews By Designations
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Nielsen Data Engineer Interview Process
based on 5 interviews
1 Interview rounds
- Technical Round
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