They usually ask situation based questions. Situations from past experiences and walmart working conditions. i.e. If it is almost a time for you shift end and you are still working on tasks assigned to you. And a customer asks you for some help. How would you respond?

They asked you the availability for working time and hours, how will you handle between customers and tasks. Could you handle the heavy load of items like lifting work. Asking you how did you know the company values and some cultures