What strategies can you use to handle skewed data in Spark?
Spark/Big Datamedium
2
Write a Python function to check if a string is a palindrome.
Python/Codingmedium
3
How does Spark's Catalyst Optimizer work? Explain its stages.
Spark/Big Datahard
4
Walk through the three AQE features in Spark 3.x (coalesce, join switch, skew join)—how they operate at shuffle boundaries, which configs enable them, and what happens when AQE cannot help.
Spark/Big Datahard
5
What is Adaptive Query Execution (AQE) in Spark 3.x, and how does it improve performance?
Spark/Big Datamedium
6
Identify who is a manager and who is not.
General/Othereasy
7
Check if a number is prime.
Python/Codingeasy
8
Implement a function to find the maximum sum subarray (Kadane's algorithm).
Python/Codingeasy
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