Walmart

Pipeline design and Spark tuning, usually one skew question.

5 questions

PySpark · 2SQL · 2Python · 1

Status	Title	Technology	Topic	Acceptance	Difficulty
○	1.Deduplicate customers, keep latest record	PySpark	Window functions	0.0%	Medium
○	15.Find duplicate invoices	SQL	Deduplication	12.5%	Easy
○	3.Broadcast join threshold tuning	PySpark	Broadcast join	—	Hard
○	14.Month-over-month revenue growth	SQL	Window functions	—	Medium
○	25.Parse fixed-width log lines	Python	Data modeling	—	Easy

Community-reported interview topics. Not official Walmart questions and no affiliation is implied.