I applied online and had a phone interview. Questions asked were basic LeetCode-style problems, such as Two Sum. Overall, if you do some practice, this should be fine. I would suggest practicing problems at LeetCode easy/medium level.
Two-sum was one of the problems.
The following metrics were computed from 4 interview experiences for the Walmart Software Engineering Intern role in United States.
Walmart's interview process for their Software Engineering Intern roles in the United States is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Walmart's Software Engineering Intern interview process in United States.