Walmart Data Engineer Interview Questions and Answers

Q1. Round 1 was with manager, he asked questions about current project and some questions based on spark.
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Q2. Lazy Evaluation, configuration for running a spark jobs
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Q1. This is where the nightmare started, 1 scenario based coding questions and 3 sql questions were asked. The questions were of hacker rank level, its not that I couldn't solve those but for a guy who have wo...read more
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Q2. 1. Design and code a scheduler for allocating meeting rooms for the given input of room counts and timestamps: Input : No of rooms : 2 Time and dutation: 12pm 30 min Output: yes. Everytime th...read more
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Design and code a scheduler for allocating meeting rooms based on input of room counts and timestamps.
• Create a table with columns for room number, start time, and end time

• Use SQL queries to check for available slots and allocate rooms

• Consider edge cases such as overlapping meetings and room availability

• Use a loop to continuously check for available slots and allocate rooms

• Implement error handling for invalid input
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Q1. Mostly SQL advanced questions
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Q2. Few Programming questions on Python
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Q1. SQL, Python and Azure Questions
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Q1. Compensation and benefits
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SQL, Spark, Hive, Python