Revolut Data Analyst Interview Questions and Answers

Q1. Tell me brief about your self
Ans. 
I am a data analyst with a strong background in statistics and data visualization.
• Experienced in analyzing large datasets using SQL, Python, and R

• Skilled in creating insightful reports and dashboards using Tableau and Power BI

• Strong communication skills to present findings to stakeholders

• Certified in data analysis and machine learning techniques
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Q2. What are youre strenth and weekness
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My strength lies in my analytical skills and attention to detail, while my weakness is sometimes getting too caught up in the details.
• Strength: Strong analytical skills

• Strength: Attention to detail

• Weakness: Getting caught up in details (provide example)
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Q1. Detailed discussion on past experience and projects.
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Q1. 2 Hackerrank SQL Questions
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Q2. 1 Hackerrank Python Question
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It was a basic Aptitude test, Needed to learn Probability, Permutation , Cobination and SQL.
Total Duration 1 Hour.

Q1. What is the order of execution in sql
Ans. 
The order of execution in SQL is: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.
• 1. FROM: Specifies the tables involved in the query.

• 2. WHERE: Filters the rows based on specified conditions.

• 3. GROUP BY: Groups the rows that have the same values into summary rows.

• 4. HAVING: Filters groups based on specified conditions.

• 5. SELECT: Selects the columns to be included in the result set.

• 6. ORDER BY: Sorts the result set base
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Q1. How to do conditional formatting in excel
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Conditional formatting in Excel allows users to format cells based on specified conditions.
• Select the range of cells you want to apply conditional formatting to

• Go to the 'Home' tab and click on 'Conditional Formatting'

• Choose the desired formatting option, such as color scales, data bars, or icon sets

• Set the conditions for when the formatting should be applied, such as greater than, less than, or equal to a certain valu...read more
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Q1. General questions and sql questions
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Q1. Different types of Joins in SQL and what are the outputs when you join two tables with nulls.
Ans. 
Different types of Joins in SQL and the outputs when joining two tables with nulls.
• Types of joins in SQL include inner join, left join, right join, and full outer join.

• When joining two tables with nulls, the output depends on the type of join used.

• In an inner join, null values are excluded from the result.

• In a left join, all rows from the left table and matching rows from the right table are included, with nulls for no...read more
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Q2. Can you union tables with different datatypes.
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Yes, but it requires careful handling of data types and potential conversion.
• Union can be performed on tables with different datatypes, but the resulting table will have a common datatype for each column.

• Data types should be compatible, otherwise conversion may be necessary.

• For example, a table with a column of integers can be unioned with a table with a column of floats, but the resulting column will be of type float.

• ...read more
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Q1. Given a data set, should write sql queries to answer a few questions
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Q2. A few puzzles would be asked to evaluate the problem solving skills.
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Q1. Business Case studies - try parctising profitablility and other cases
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Q1. An Excel round will also be there if you apply for business analyst role.
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