Mobile Premier League Data Science Intern Interview Questions and Answers

Contained aptitude test with both numericals as well as coding questions

It was a one on one round

Q1. Final discussion
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Q2. If ready to relocate
Ans. 
Yes, I am open to relocation for the right opportunity.
• I am willing to relocate for a job that aligns with my career goals and offers growth opportunities.

• I am open to exploring new cities and cultures.

• I understand that relocation may come with some challenges, but I am prepared to face them.

• I am excited about the prospect of working with a new team and contributing to the success of the company.
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SQL Coding Test - asked 5 queries related to joins, ranks, group by

Asked guesstimates, technical CV Question, case

Asked guesstimate, market entry question, case

Q1. What is the difference between Union and Union all ?
Ans. 
Union combines the results of two or more SELECT statements, while Union all includes all rows, including duplicates.
• Union removes duplicate rows from the result set, while Union all includes all rows.

• Union sorts the result set, while Union all does not.

• Union is slower than Union all because it performs a distinct operation.

• Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example: SELECT column1 FRO
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Q2. Which query is more faster , joins or union?
Ans. 
Joins are generally faster than unions.
• Joins are typically faster than unions because they combine data from multiple tables based on a common column, while unions combine data from multiple queries into a single result set.

• Joins can utilize indexes on the columns being joined, which can improve performance.

• Unions involve combining the results of multiple queries, which can be slower as it requires merging and sorting ...read more
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Q1. What is an API (Application Programming Interface)?
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Q2. What is the difference between abstract class and interface?
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Q1. Resume based questions on past experience
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Q2. Case study based questions
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Q1. Resume based questions,
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Q2. Moderate SQL Coding question
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Q3. Case study based questions
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Q1. General HR related questions
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Q1. Managerial & Aptitude questions
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Q1. Managerial discussion about role & industry
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General coding questions

Q1. Related technical question
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