the first interview was an assessment, I didn't expect an assessment because I thought it was a normal chat for discussing the role. Anyway I was prepared. The assessment consisted in 5 question regarding the role I was applying for.

None really. You go in, take an assessment, if you pass, you go to another meeting and take a drug test, get your badge photo taken and you're basically in. They're really BAD at the whole hiring process, I wouldn't expect to get the job even if they say you're in. Even though they took my badge photo, I had to retake one myself because they didn't have one on file and then they messed up my drug test, didn't tell me until weeks later, then i had to go in and retake it and by the time everything was given the clear, they stuck me on a 'pending start date' for the past 3 weeks and still nothing. I've been waiting since OCTOBER to work here and it isn't worth it. I would not rely on this, look for other jobs while waiting.