Questions that have appeared at Walmart Labs for a Software Engineer (Technical) interview.

1. Data Structures and Algorithms

Question: Can you explain how a hash table works and when it is beneficial to use one?

Question: Describe the process of performing a binary search on a sorted array.

Question: How would you use a tree data structure to solve a real-world problem?

2. Databases

Question: Can you explain the concept of ACID in database transactions?

Question: When should you use a NoSQL database over a traditional SQL database?

Question: What is sharding in databases and how does it improve performance?

3. System Design

Question: How would you design a distributed system to handle high loads of user traffic?

Question: Can you explain how you would design an online shopping cart system?

Question: Describe how you would design a system for a multi-vendor eCommerce platform.

4. Software Development Life Cycle

Question: What steps would you take to ensure the quality of your code before deploying it?

Question: Can you explain the Agile software development methodology and its benefits?

Question: How do you handle a situation where a critical bug is found in production?

5. Networking

Question: Can you explain how the HTTP protocol works?

Question: What is the difference between TCP and UDP, and when would you use each one?

Question: Can you describe the process that occurs when a URL is typed in a browser?