Schibsted Devops Engineer interview questions

The interview process is kinda confuse. The recruiter asked me for a call with the HR but, in the end, I got a call with an engineer. It was supposed to be a 30min call starting at 7am and I got in the conference link on time but nobody got in. I emailed the recruiter and he called me and asked to wait a little bit more to get interviewed. Then got interview by a engineer who had a 45 min delay and made confuse questions. Seems like he was unprepared for the call. Some of the questions he said that nobody could understand when he asked it. eg.: what are the 4 steps for a tcp connection? I had to make lots of questions to understand what he want.