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Data engineer Interview Questions

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SQL - Between "Medium" and "Hard" on Leetcode. They expect you to know all of your JOINs, as well as subquerying and partition windows. Python - Around "Medium" on Leetcode. Mostly around data structures.

3 Answers

Can you expand on the type of python questions asked onsite? Were they similar to the phone screen?

Buddy , could you pls give specific examples about the python questions asked in the onsite interview.

Could you pls share some hints on what sort of python qstns can be expected for onsite? Like screening or writing ETL pipeline for OLAP design?

how much have experinece in spark?

2 Answers

Solve 3 SQL problems

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private static Map namesToNumPurchases = new HashMap() {{ put("Chris", 10); put("Bob", 5); put("David", 5); put("Sue", 12); put("Jim", 3); }}; /* Required output: 3: Jim 5: Bob, David 10: Chris 12: Sue */

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Create a Sudoku game solver in Python

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what use case are all big data technologies used for

1 Answer

About life, why I wanted to move to London.

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Solve a provided scenario that involves building multiple lists in Python.

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How would you describe bitcoin/crypto to your gran

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Describe the advantages and disadvantages between Oracle SQL and MySQL

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