Nykaa Data Engineer 2 Interview Questions and Answers

Q1. Window functions
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Q2. Joins and aggregate functions
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Q3. Abalytical function lag() and lead() question
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Q1. Guesstimate and Puzzle
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Q1. What is your experience in data analysis? 3 years experience
Ans. 
I have 3 years of experience in data analysis.
• Utilized various statistical tools and software for data analysis

• Performed data cleaning, transformation, and visualization

• Developed predictive models and conducted trend analysis

• Worked on projects involving large datasets from diverse sources
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Q2. What is your current job or role?
Ans. 
I am currently working as a Data Analyst at a tech company.
• Analyzing large datasets to extract valuable insights

• Creating visualizations and reports to communicate findings

• Collaborating with cross-functional teams to drive data-driven decision making
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Q3. I have 3 years experience
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Q1. Tell me about yourself?
Ans. 
I am a data analyst with a background in statistics and programming, passionate about turning data into actionable insights.
• Background in statistics and programming

• Experience in data analysis and visualization

• Strong problem-solving skills

• Ability to communicate complex findings to non-technical stakeholders
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Q2. Tell me what work you do at your current company?
Ans. 
I analyze data to identify trends, patterns, and insights to support decision-making.
• Analyze large datasets to extract valuable insights

• Create visualizations to communicate findings

• Collaborate with stakeholders to understand business needs

• Use statistical tools and techniques to interpret data

• Present findings and recommendations to management
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Q3. What are your views on beauty?
Ans. 
Beauty is subjective and can be found in various forms, such as nature, art, and human relationships.
• Beauty is subjective and can vary from person to person.

• It can be found in nature, like a breathtaking sunset or a blooming flower.

• Artistic creations, such as paintings, sculptures, and music, can also be considered beautiful.

• Beauty can also be seen in human relationships, acts of kindness, and expressions of love.
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Q1. Create the pivot table, sort the data in ascending order
Ans. 
Create a pivot table and sort the data in ascending order.
• To create a pivot table, select the data range and go to the 'Insert' tab in Excel.

• Choose 'PivotTable' and select the location for the pivot table.

• Drag the desired fields to the 'Rows' and 'Values' areas.

• To sort the data in ascending order, click on the drop-down arrow next to the field name in the pivot table and select 'Sort A to Z'.
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Q2. Use lookup with the product based given data and find the needed data
Ans. 
Using lookup with product-based data to find the needed data.
• Use a lookup function like VLOOKUP or INDEX/MATCH to search for the needed data

• Identify the key or unique identifier to match the data

• Specify the range or table where the data is located

• Retrieve the desired data based on the lookup value
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Q1. Output resukt number of rows basis the joins
Ans. 
The output result number of rows depends on the type of join used.
• Inner join returns only the matching rows from both tables

• Left join returns all rows from the left table and matching rows from the right table

• Right join returns all rows from the right table and matching rows from the left table

• Full outer join returns all rows from both tables

• Cross join returns the Cartesian product of both tables
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Q2. Output result number of rows basis the joins
Ans. 
The question asks to output the number of rows based on joins.
• The number of rows in the output depends on the type of join used.

• Inner join only returns rows that have matching values in both tables.

• Left join returns all rows from the left table and matching rows from the right table.

• Right join returns all rows from the right table and matching rows from the left table.

• Full outer join returns all rows from both tables.

• U...read more
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Q1. Intermediate SQL questions
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Q2. Pivot and Vlookup questions
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How many cars are sold in your city in a month and questions on the projects I have done in my previous organisation

Questions were on sql , python and java

Duration was 10 minutes

All and all it was a wholesome interview with a mix of sql, python questions

Good the case study was fairly doable

Q1. Why you want 2 join Myntra
Ans. 
I want to join Myntra because of its innovative approach to e-commerce and its strong focus on customer satisfaction.
• I am impressed by Myntra's use of data analytics to personalize the shopping experience for customers.

• I admire Myntra's commitment to staying ahead of trends in the fashion industry.

• I believe Myntra offers a dynamic and challenging work environment that will allow me to grow as a data analyst.
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Q2. Salary expectations
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