Walmart Data Engineer Interview Questions and Answers for Experienced

Based on python and sql

Q1. Related to spark
Add your answer
Q2. Dimensional Modelling
Add your answer

Q1. Round 1 was with manager, he asked questions about current project and some questions based on spark.
Add your answer
Q2. Lazy Evaluation, configuration for running a spark jobs
Add your answer

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
Add your answer
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
Ans. 
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
Answered by AI
Add your answer

Q1. Mostly SQL advanced questions
Add your answer
Q2. Few Programming questions on Python
Add your answer

Q1. SQL, Python and Azure Questions
Add your answer

Q1. Compensation and benefits
Add your answer