Exl India Senior Data Scientist Interview Questions and Answers for Experienced

SQL, Python Coding & MCQ test

Behavioural questions mostly, they tey ro find approach.

Q1. Salary negotiations
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Q2. Location preference
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First round was aptitude test,duration is of 25 minutes involves SQL,PowerBI,Python, Qunatitative Aptitude,SAS skillset

Python, SQL, Aptitude

Q1. SQL - A table EmployeeSkills was given having two columns EmpID & Skills. There can be multiple for an employee id with skills he possess. You need to find the EmpID having skills in Python and SQL
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Q2. PowerBI - Create Bookmarks in Power BI
Ans. 
Bookmarks in Power BI allow users to save the state of a report, including filters, slicers, and visuals.
• Bookmarks can be created by selecting 'View' and then 'Bookmarks' in the Power BI toolbar.

• Users can add bookmarks by selecting 'Add' and then naming the bookmark.

• Bookmarks can be applied by selecting the desired bookmark from the 'Bookmarks' pane.

• Bookmarks can be used to save different views of a report for easy acc
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Q3. SQL - Find cumulative Profit sum in a given table.
Ans. 
Use SQL query with window function to find cumulative profit sum in a given table.
• Use window function like SUM() with ORDER BY clause to calculate cumulative profit sum.

• Example: SELECT date, profit, SUM(profit) OVER (ORDER BY date) AS cumulative_profit FROM table_name;

• Ensure the table has a column for date and profit to order and calculate cumulative sum.
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Talk to the head hunter. General phone screening

Q1. Talk to the hiring manager and another manager from BI. Asked about work experience and gave me a SQL test
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Shared a dataset and wanted me to provide some insights and also build some slides to present

Q1. Detailed questions on probability. Statistical questions.
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SQL, Python and Power BI