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27 questions · 4 match your filters
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Technology
SQL
10
Python
9
PySpark
4
Databricks
2
Data Engineering
1
Spark
1
Difficulty
Hard
3
Medium
1
Experience
2–5 years
3
5–8 years
1
Company
Amazon
2
Walmart
2
Flipkart
1
Swiggy
1
Status
Unsolved
Attempted
Solved
PySpark
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Title
Technology
Topic
Acceptance
Difficulty
○
1.
Deduplicate customers, keep latest record
PySpark
Window functions
0.0%
Medium
○
3.
Broadcast join threshold tuning
PySpark
Broadcast join
—
Hard
○
4.
Skew-safe join on order_id
PySpark
Partitioning
—
Hard
○
12.
Fix a slow groupBy on 2B rows
PySpark
Spark optimization
—
Hard
Showing 1–4 of 4
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