Sr Software Engineer Walmart interview

I got 4 interview rounds of 45 min each Interview 1: Focus Area: Cloud Computing and API development using open source technologies Interview 2: Focus Area: Data Structure & Algorithm Interview 3: Focus Area: Problem Solving Interview 4: Focus Area: Operational Excellence (S/w lifecycle) #engineering #software #swe I want to know what will be there in Interview 1 and 4 as there is no havkerrank link provided and is there any behavioral questions pdf for Walmart that I can go through?