Interviews are more focused on how to deal with difficult customers and a general appraisal of skill set rather than specific questions about code or systems knowledge. Managers also try to get a feel of whether you fit into their local culture well, than if you know what circumstances require a binary sort vs. a bubble sort.

Very straightforward just be yourself and don’t paint yourself to be someone you aren’t be yourself and choose wise well thought responses to questions try your best and you’ll be good