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Interview questions · medium
What strategies can you use to handle skewed data in Spark?
Write a Python function to check if a string is a palindrome.
What is Adaptive Query Execution (AQE) in Spark 3.x, and how does it improve performance?
Add a new column with manager names for each employee using a self-join.
Add a new column with the average salary by department.
Duplicate characters in a string (e.g., '123a!' to '112233aa!!').
What are the steps to efficiently process 1 TB of data in Spark?
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