First, the recruiter connects with you, gets an introduction, then they give you an OA that I passed. Then they scheduled an interview, make sure to get your recruiter's number, so that if you didn't hear back regarding the OA few days, you can reach out. Honestly my mistake I got sick the weekend I was supposed to take the OA and asked for an extension, but it closed they asked me questions about my resume, dived deep into some of my projects, and this was like an interview for a data science role.