XPO Software Engineer interview questions

Four rounds of interview were conducted three technical interview round, first one to check your technical knowledge, second one is technical but questions are based on practical work, third one is conducted by onsite employee last one is HR interview round

pretty easy questions - technical screening consisting of general programming questions and general SQL questions. The general programming questions were things like, how can you switch two variables without using a third variable? The SQL questions were along the lines of write a query that returns a, b, and c from this table and ordered in this way.