Duo Security interview questions

Had an interview for an SRE position with Duo Security in Sydney. They only have a handful of members in Australia at the moment as they're building out the team. The SRE manager and team member I met in the phone screen and first interview were all really nice. The interview process was 4 rounds: 1 programming test (leetcode style on Codility), 1 system design, 2 behavioural with management. I unfortunately failed at the coding test as that type of environment or interview process isn't my strong suit. I was surprised there even was a programming round for an SRE role but each company obviously defines them differently