Questions that have appeared at Walmart Labs for an engineering (Case Study) interview.

1. System Design

Question: How would you design a robust inventory management system for a retail giant like Walmart?

Question: How would you approach designing a real-time tracking system for in-store customer movement and behavior?

Question: Can you discuss a distributed database design for managing Walmart's worldwide sales data?

2. Scalability

Question: How would you ensure the scalability of a Walmart's online shopping system during high traffic events like Black Friday?

Question: When it comes to large-scale systems like those at Walmart, what strategies would you use to ensure system stability?

Question: How would you design Walmart's e-commerce platform to handle millions of simultaneous users?

3. Data Analysis

Question: How would you implement an efficient data processing model to handle Walmart's large-scale transaction data?

Question: How would you design a system to identify trends and patterns in Walmart's sales data?

Question: Imagine a situation where Walmart has collected a vast amount of unstructured data from various sources. How would you approach analyzing and making use of this data?

4. Performance Optimization

Question: Imagine Walmart's e-commerce website is experiencing a high load time during peak hours. How would you diagnose and address this issue?

Question: How would you design an efficient caching strategy for Walmart's e-commerce platform to improve its performance?

Question: How would you approach optimizing the performance of a database handling millions of transactions at Walmart?